Question

Need help can someone help me

Answer 1

Check the picture below.

so we really have four congruent triangles with a base of hmmm 8.9 and a height of 4.4.

`\stackrel{ \textit{four congruent triangles} }{4\left[\cfrac{1}{2}(\underset{b}{8.9})(\underset{h}{4.4}) \right]} ~~ \approx ~~ \text{\LARGE 78.3}~in^2`