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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 ...

Find the area of the shaded part in the figure. Use 3.14 for ƒàƒnand round your answer to one decimal place. the triangle as a cicle in the middle the right side is  ...

Sal finds a shaded area defined by two equilateral triangles whose side lengths are given. ... And if I wanted to get an approximate answer as a decimal.

www.algebra.com/algebra/homework/Triangles/Triangles.faq.question.326795.html

SOLUTION: Find the area of an equilateral triangle that has a perimeter of 21 inches. Round the answer to one decimal place. ... So if we know the perimeter of a triangle is 21 inches, we can divide that by 3 to find the length of each side:

A worked example of finding the area of an equilateral triangle inscribed within ... So if this is side length a, then this is side length a, and that is also a side of length a. ... So from the center to the circumference at any point, this distance, the radius, ... And the central angle that is subtending that same arc is this one right here.

www.moomoomath.com/How-to-find-the-height-of-an-equilateral-triangle.html

Find the height of an equilateral triangle with side lengths of 8 cm. 8/2 = 4 4√3 = 6.928 cm. When do you use decimals and when do you use the answer with a square root. The answer ... Find the height of a triangle with sides of 6 units. Step 1. Take 1/2 of a side times √3 ... Plug height into the area formula 1/2b * h. h=1/2  ...