Question

Find the area of a regular pentagon with a side length of 5cm. Round to the nearest tenth.(high reward)

Answer 1

43.01

:)

Explanation:

Answer 2

40 cm2

Explanation:

A=1

45(5+25)a2=1

4·5·(5+2·5)·52≈43.01194cm²≈40.0cm²