Question

A triangular pennant has two sides that are 90 cm long each with an included angle of 25°.

What is the area of this pennant?

Enter your answer as a decimal in the box. Round only your final answer to the nearest tenth.

___ cm²

Answer 1

A=1,711.6 cm²

Explanation:

Answer 2

The area will be given by the formula
A=1/2ab sin θ
thus
A=1/2 ×90×90sin 25
A=1,711.604 cm²²