What is the measure of ONE interior angle in a nonagon?
1 answer:
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Answer:
54.67 cm²
Step-by-step explanation:
Given that the two sides of Δ ABC are 8.2 cm and 13.5 cm and the angle included by those sides is 81°.
Let, b = 8.2 cm and c = 13.5 cm and ∠ A = 81°
Hence, area of triangle ABC, Δ =
⇒ Δ =
⇒ Δ =
⇒ Δ = 54.67 cm² (Answer)