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Radda [10]
3 years ago
9

(#5) A carpenter has two different-sized circular saws. The smaller saw has the radius shown. I couldn't show it, so it is 1.25

inches. The larger saw has a diameter that is 1.5 inches greater than the diameter of the smaller one. How much greater is the circumference of the larger saw than the smaller saw? Use 3.14 for π. Attach a picture of your work. *
Mathematics
1 answer:
grin007 [14]3 years ago
5 0

Answer:

4.71 in. difference

Step-by-step explanation:

so, the radius of the smaller saw is 1.25 and the diameter is double the radius. so it is 2.5 in diameter. the larger saw is 1.5 in greater which is 4 in.

to find circumference, you have to use the solution C = πd or circumference = pi x diameter.

3.14 x 2.5 = 7.85

4 x 3.14 = 12.56

subtract 7.85 from 12.56 to get your answer! i hope this helps!

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The formula for the area of a trapezoid is:

A= (a+b)/2*h

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So we need to solve for a. Let's plug in the values that we do know...

A= (a+b)/2*h
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150=(a/2+14/2)*10
150=(a/2+7)*10
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subtract 7 from both sides
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multiply both sides by 2
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