For an equilateral triangle, next A measures

and side B measures . What is the length of next A?Explanation:

First you should recognize the for an it is provided triangle, every 3 sides have equal lengths.

You are watching: What is the measure of each angle in an equilateral triangle

This means you can set the 2 values because that Side A and also Side B equal to one another, due to the fact that they measure up the exact same length, to resolve for

.You now understand that

, but this is not your answer. The question asked for the length of side A, for this reason you must plug 3 right into that equation.So the size of next A (and next B for that matter) is 8.

One edge of an it is provided triangle is 60 degrees. One next of that triangle is 12 centimeters. What space the actions of the two various other angles and two other sides?

Explanation:

An it is provided triangle is one in i m sorry all 3 sides room congruent. It also has the home that all three internal angles are equal. In various other words, all 3 angles that an it is intended triangle are constantly 60°. Because all sides room congruent, the various other two sides both measure up 12 centimeters.

Explanation:

To discover the perimeter that an equilateral triangle, we will use the adhering to formula:

where *a* is the length of any kind of side the the triangle. Because an equilateral triangle has actually 3 same sides, we can use any kind of side in the formula. To find the size of one side of the triangle, we will deal with for *a*.

Now, we understand the perimeter of the it is provided triangle is 18in. So, we will substitute.

Therefore, the length of one side of the equilateral triangle is 6in.

Explanation:

An equilateral triangle has 3 equal sides. So, to find the size of one side, us will use what we know. We recognize the perimeter that the equilateral triangle is 39in. So, we will certainly look in ~ the formula because that perimeter. We get

where *a* is the size of one next of the triangle. So, to discover the length of one side, us will resolve for *a*. Now, as proclaimed before, we know the perimeter the the triangle is 39in. So, we will certainly substitute and solve for *a*. Us get

Therefore, the length of one next of the equilateral triangle is 13in.

Report an Error

### Example inquiry #5 : Equilateral triangle

The size of one side of an it is provided triangle is 6 inches. Provide the area of the triangle.

**Possible Answers:**

**Correct answer:**

Explanation:

,

where

and are the lengths of 2 sides that the triangle and also is the angle measure.In an equilateral triangle, every one of the sides have the same length, and all three angles are constantly

.Report an Error

### Example concern #6 : Equilateral triangle

The perimeter the an equilateral triangle is

. Provide its area.**Possible Answers:**

**Correct answer:**

Explanation:

An equilateral triangle through perimeter

has 3 congruent political parties of lengthThe area of this triangle is

, soReport an Error

### Example concern #7 : Equilateral triangle

The perimeter of an equilateral triangle is

. Give its area.**Possible Answers:**

The correct answer is not among the other 4 choices.

**Correct answer:**

Explanation:

An it is provided triangle v perimeter

has three congruent political parties of lengthThe area the this triangle is

Report an Error

### Example concern #8 : Equilateral triangles

The perimeter the an it is provided triangle is

. Provide its area in state of .**Possible Answers:**

**Correct answer:**

Explanation:

An it is intended triangle with perimeter

has three congruent political parties of length . Substitute this for in the adhering to area formula:Report an Error

### Example inquiry #9 : Equilateral triangles

An equilateral triangle is inscribed inside a circle of radius 8. Offer its area.

**Possible Answers:**

**Correct answer:**

Explanation:

The cheat is to understand that the circumscribed circle, or the *circumcircle*, has actually as its facility the intersection the the 3 altitudes of the triangle, and that this center, or *circumcenter*, divides each altitude right into two segments, one twice the length of the other - the longer one gift a radius. Since of this, we have the right to construct the following:

We will discover the area of

, and also multiply it by 6., so the area of is.Six times this -

- is the area of .Report one Error

### Example inquiry #10 : Equilateral triangle

The perimeter that an equilateral triangle is

. Provide its area.**Possible Answers:**

**Correct answer:**

Explanation:

An it is provided triangle v perimeter 36 has three congruent sides of length

The area the this triangle is

Report one Error

← ahead

*1*2 3 next →

view Tutors

Steven Certified tutor

Stony Brook University, Bachelor the Science, used Mathematics. Florida Gulf coastline University, master of arts Teaching, Mat...

See more: Free Fl A Form For Recording Transactions In Chronological Order

watch Tutors

Joe Certified guardian

Massachusetts institute of Technology, Bachelor of Science, chemistry Engineering. College of Pennsylvania, understand of Scien...

check out Tutors

Rosie Certified tutor

Texas State University-San Marcos, Bachelors, Mathematics. Texas State University-San Marcos, Masters, Mathematics.

### All ISEE top Level Math resources

6 Diagnostic test 244 exercise Tests concern of the job Flashcards learn by concept

Popular Subjects

sat Tutors in Atlanta, Calculus Tutors in Chicago, GRE Tutors in Seattle, English Tutors in new York City, MCAT Tutors in san Francisco-Bay Area, reading Tutors in Washington DC, SSAT Tutors in Houston, LSAT Tutors in Boston, Statistics Tutors in Atlanta, Statistics Tutors in Los Angeles

Popular courses & Classes

Spanish process & class in Atlanta, SAT courses & class in Seattle, SSAT process & great in Atlanta, MCAT courses & classes in Miami, MCAT courses & class in new York City, GMAT process & great in Boston, SSAT courses & class in Dallas fort Worth, ACT courses & great in Atlanta, SAT courses & classes in san Diego, SAT process & classes in brand-new York City

Popular check Prep

MCAT test Prep in Phoenix, ACT test Prep in Atlanta, satellite Test prepare in Chicago, GMAT check Prep in Boston, MCAT test Prep in Chicago, SSAT check Prep in Washington DC, LSAT test Prep in Denver, GMAT check Prep in Chicago, GRE test Prep in mountain Francisco-Bay Area, SSAT test Prep in Houston

Report an worry with this question

If you"ve uncovered an concern with this question, please let us know. With the help of the neighborhood we can proceed to enhance our educational resources.

Do not fill in this field

* your Name:

* issue Description:

DMCA complain

your Infringement notice may it is in forwarded to the party that made the content obtainable or to third parties such together ChillingEffects.org.

you re welcome follow these steps to document a notice:

girlfriend must encompass the following:

Send your complain to our designated agent at:

Charles Cohn Varsity Tutors gmbh 101 S. Hanley Rd, Suite 300 St. Louis, MO 63105