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Geometry

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Find the area

A polygon with 7 sides

How many degrees are in the sum of an interior angle and an exterior angle of a regular polygon

Find the area of an equilateral triangle that has a perimeter of 21 inches Round the answer to one decimal place

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Q: Find the area of an equilateral triangle has a perimeter of 21 inches round the answer to one decimal place?
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Related questions

Find the area of an equilateral triangle that has a perimeter of 21 inches Round the answer to one decimal place?

Find the area of an equilateral triangle that has a perimeter of 21 inches. Round the answer to one decimal place.


What is the area of an equilateral triangle that has a perimeter of 21 inches rounded to one decimal place?

21.2 sq inches.


Find the area of an equilateral triangle that has a perimeter of 21 inches. round the answer to one decimal?

Area of equilateral triangle: 0.5*7*7*sin(60 degrees) = 21.2 square inches


What is the perimeter of a triangle which sides measure 6 inches?

18 inches and it is an equilateral triangle


What is the perimeter of an equilateral triangle with a side of 2 inches?

6in.


What is the area of an equilateral triangle that has a perimeter of 21 inches?

21.20


What is the Side length of an equilateral triangle with perimeter of 36 inches?

12 inches


The perimeter of an equilateral triangle is 7.5 inches What is the length of one side?

2.5 inches


An equilateral triangle has a perimeter of 27 inches What is the length of each side?

9 inches


What is the length each side of an equilateral triangle that has a perimeter of 18 inches?

6 inches


What is the perimeter of an equilateral triangle that had a base side of the 5inches?

The perimeter is the sum of all sides. An equilateral triangle has three sides of equal length. So if one side is 5 inches, and we have three of these, we get a perimeter of 15 inches.


Area of an equilateral triangle with a 9 inch perimeter?

3.897 square inches.

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