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Ivenika [448]
4 years ago
14

ABCDE is a regular pentagon. The apothem is 9.7 cm, and AB = 14.1 cm. Calculate the area of the pentagon. Round the answer to th

e nearest tenth.
Mathematics
1 answer:
devlian [24]4 years ago
8 0
        ABCDE is a regular pentagon which consists of 5 equal triangles.
Area of the pentagon ABCDE:
        A = 5 * 1.41 * 9.7 / 2 = 683.85 / 2 = 341.925 ≈ 341.9 cm²
       Answer: The area of the pentagon ABCDE is 341.9 cm².
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Answer:

The constant of proportionality is 5.

Step-by-step explanation:

If the quantity q varies inversely with the square of m and directly with the product of r and x, then the variation equation is

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When q=2.5, m= 4 and the

product of rx = 8.

We plug in this values to get;

2.5=k(\frac{8}{4^2})

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2.5=\frac{1}{2}k

Multiply both sides by 2

k=2.5\times 2=5

The constant of proportionality is 5.

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SCORPION-xisa [38]

Answer:

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Step-by-step explanation:

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3 years ago
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4 years ago
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Hi There!

Step-by-step explanation:

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