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3 years ago

10

A circle has a radius of 8 cm. What is its area? Use

le=" \pi " alt=" \pi " align="absmiddle" class="latex-formula"> = 3.14.

1 answer:

jekas [21]3 years ago

7 0

The formula for the area of the circle is:
$Area= \pi r^{2}$
All you have to do is plug in 8 for r :)

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10) Find the measure of angle D. Hint: you must do two math problems to solve

NISA [10]

Answer:

Option A.) 43°

Step-by-step explanation:

Part 10)

step 1

Find the length of side EG

see the attached figure to better understand the problem

we know that

In the right triangle EGF

$cos(65^o)=\frac{EG}{EF}$ ----> by CAH (adjacent side divided by the hypotenuse)

substitute the given values

$cos(65^o)=\frac{EG}{11}$

solve for EG

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step 2

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substitute the given values

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