3 years ago

Helllppppppppp meeeeee

Mathematics

2 answers:

ArbitrLikvidat [17]3 years ago

7 0

Is there any more information?

Eddi Din [679]3 years ago

6 0

Yeeea you would need more info to answer this question

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FIND THE EXACT AREA PLEASE HELP ILL GIVE BRAINLIESTTTT

wolverine [178]

Check the picture below.

$\textit{area of a circular ring}\\\\ A=\pi (R^2-r^2)~~ \begin{cases} r=\stackrel{smaller}{radius}\\ R=\stackrel{larger}{radius}\\[-0.5em] \hrulefill\\ r=2\\ R=3 \end{cases}\implies \begin{array}{llll} A=\pi (3^2-2^2)\implies A=5\pi \\\\\\ A\approx 15.71 \end{array}$

5 0

3 years ago

A semicircle has an area of 76.97 km² . Find its radius

vagabundo [1.1K]

Area of a semicircle = 1/2 πr²

1/2 πr² = <span>76.97

Multiply both sides by 2:
</span>πr² = 153.94

Divide both sides by π:
<span>r</span>² = 49

Square root both sides:
r=√49

r = 7

Answer: r = 7

4 0

4 years ago

Read 2 more answers

After 3 hours of of driving, Paul had gone 183 miles. What was his average rate of speed? Explain your answer.

torisob [31]

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$s(av) = \frac{∆x}{∆t} \\$