In ΔRST, s = 7.3 inches, t = 3.1 inches and ∠R=138°. Find the area of ΔRST, to the nearest 10th of a square inch.
1 answer:
Answer:
5.1 inches
Step-by-step explanation:
Five triangles make up the pentagon.
The area of each is aside
The area of the pentagon is 5
Substitute values and calculate
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