Mathematics: Find the area of the regular polygon

Find the area of the regular polygon - id12455366, moowalden1239

Serenitybella

08.05.2021

$area = 44.0467 \: cm {}^{2}$

step by step explanation

● area of regular polygon Formulas ,

⟹ $a = \frac{l^{2}n}{4tan(\frac{\pi }{n)}}$

● now finding the area of regular polygon,

⟹ $\frac{4 {}^{2} \times 8 }{ 4 \: tan \: \binom{180}{5} }$

⟹ $a = \frac{128}{4 \times 0.7265}$

⟹ $a = 44.0467 \: cm {}^{2}$

Hope it's helps you

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hollandhogenson

13.01.2023

C = 28.9

Step-by-step explanation:

Given the right angled triangle, ∆BCD, you are required to find the measure of angle C.

Apply the trigonometric ratio formula to find m < C.

Adjacent side = 7

Hypotenuse = 8

Trigonometric ratio formula to apply would be:

$cos(C) = \frac{7}{8}$

cos(C) = 0.875

$C = cos^{-1}(0.875)$

C = 28.9

(To nearest tenth)

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