In the following figure, an equilateral triangle $DEF$ has sides of $14$ cm. Find the height, \(

Question

In the following figure, an equilateral triangle $DEF$ has sides of $14$ cm. Find the height, $h$ of this triangle. Hence, find the area of triangle $DEF$.

Accepted Answer

(a) $h=12.1\text{ cm}$ (b) $84.9\text{ cm}^2$

Using Pythagoras’ Theorem in an Equilateral Triangle

Using Pythagoras’ Theorem in an Equilateral Triangle

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