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3 years ago

Find the area of each regular polygon. Round your answer to the nearest tenth if necessary.

Mathematics

1 answer:

vlabodo [156]3 years ago

7 0

Answer:

Step-by-step explanation:

Remark

This is a regular pentagon. The information given is enough the find the area of 1 triangle. There are 5 such triangles. So find the area of 1 of the triangles. The answer will be 5 times as much.

Givens

b = 18.3

h = 12.6

Formula

1 triangle = 1/2 * b * h

5 such triangles = 5 times as much

Solution

Area(1_triangle) = 1/2 * 18.3 * 12.6

Area (1_triangle) = 115.29

Answer: 5 * 115.29

Answer: 576.45

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<h2>a.</h2><h3>Solution:</h3>

$42 - 42 \times 15\%$

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