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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
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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

User Daniil Chuiko
by
8.3k points

2 Answers

3 votes

Answer:

A=1,711.6 cm²

Explanation:

User Stijn Leenknegt
by
8.6k points
4 votes
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
User James Bedford
by
7.8k points
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