Study guides

☆☆

Q: Area of equilateral triangle with perimeter of 21 inches?

Write your answer...

Submit

Still have questions?

Continue Learning about Geometry

3.897 square inches.

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

21.2 sq inches.

Area of equilateral triangle: 0.5*8*8*sin(60 degrees) = 27.7 square inches rounded

The area of a given hexagon is equal to the area of an equilateral triangle whose perimeter is 36 inches. Find the length of a side of the regular hexagon.Click once to select an item at the bottom of the problem.

Related questions

21.20

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

3.897 square inches.

62.354 inches2

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

21.2 sq inches.

Perimeter of equilateral triangle: 24 units Area of equilateral triangle: 27.713 square units rounded to three decimal places

Area of equilateral triangle: 0.5*8*8*sin(60 degrees) = 27.7 square inches rounded

the answer is 32

The area of a given hexagon is equal to the area of an equilateral triangle whose perimeter is 36 inches. Find the length of a side of the regular hexagon.Click once to select an item at the bottom of the problem.

Area equals 15.59

You cannot. For a given area, an equilateral triangle will have the smallest perimeter but that perimeter can be increased - without limit - without increasing the area.

People also asked