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3 years ago

Find the length of AB 80° arc

Mathematics

2 answers:

Shalnov [3]3 years ago

7 0

I think it is 90. I hope this helpsb

rusak2 [61]3 years ago

4 0

Answer:

11.2

Step-by-step explanation:

The formula for an arc length is $\frac{a}{360\\}$ 2πr {a=inside angle(in this case 80°) r=radius}

Simplify this formula by dividing the bottom by two and combining pi and r with the top.

$\frac{\pi80times8 }{180}$

80 times 8 is 640, so

$\frac{640\pi }{180\\}$

plug 640 times pi into a calculator and divide by 180.

you'll get 11.170107etc

Round your answer to the nearest tenth, and you get;

11.2

Sorry the steps are so confusing!

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The dimensions of the rectangles to the nearest hundredth are

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<h3>What is a rectangle?</h3>

A rectangle is four sided plane figure which each pair of sides equal and opposite to each other. The sides intersect at an angle of 90 degrees.

<u>Given data</u>

Area of the rectangle = 46 square inches

length L = 4 * width W

area of a rectangle, A

A = L * W

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46 = 4w * w

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Read more on areas of rectangles here: brainly.com/question/2607596

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