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Iteru [2.4K]
2 years ago
10

PLEASE SHOW WORK

Mathematics
1 answer:
Dmitrij [34]2 years ago
6 0

Answer:

Below in bold

Step.-by-step explanation:

It consists of 5 isosceles triangles of equal sides 4 cm and vertex angles 360 / 5

= 72 degrees.

Area of 1 triangle = 1/2 * 4^2 *sin 72

Area of the whole pentagon = 5 * 1/2 *4^2 * sin 72

= 38.04 cm^2.

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