# Mathematics

1. Find the circumference of the given circle. Round to the nearest tenth.

(Circle with radius of 3.5 cm)

-22.0 cm
-38.5 cm
-11.0 cm
-42.8 cm

2. Find the area of the given circle. Round to the nearest tenth.

(Circle with a diameter of 12 feet)

-11.0 ft
-38.5 ft
-42.8 ft
-113.0 ft

3. Find the diameter of a circle with a circumference of 50 mm. Round your answer to the nearest tenth.
-16.0 mm
-26.4 mm
-8.4 mm
-33.5 mm

4. Find the area of a circle with the given radius or diameter. Round your answer to the nearest tenth.
Diameter = 42.0 mm

-137.6 mm
-376.7 mm
-1,384.74 mm
-6,027.0 mm

1. 22.0 cm
2. 113.0 ft
3. 16.0 mm
4. 1,384.74 mm

I know many of you are probably busy most of the time, but if it is possible, please respond today. I don't mean to rush any of you, but thank you if you respond soon. :)

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1. 1. yes
2. yes
3. yes
4. yes

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Damon
2. 1. Yes; use the formula 2*3.14*r. In this case, 2*3.14*3.5 = 21.98. Round it up to the nearest tenth and you have 22.0 cm.
2. Yes; use the formula 1/4*3.14*d. In this case, 1/4*3.14*12 = 113.1. Round it up to the nearest tenth and you have 113.0 ft.
3. Yes; use the formula d = c/3.14. In this case, d = 50/3.14 = 15.92. Round it up to the nearest tenth and you have 16.0 mm.
4. Yes; use the same formula as in question 2; 1/4*3.14*d. In this case, 1/4*3.14*42.0 = 1385.44. Round it up and you have 1,384.74

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3. Both Damon and Dr. Mathematical are right! Thank you so much! :D

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4. Thank you so much Damon and Dr. Mathematical for checking my answers. :) I just wanted to make sure they were right. :)

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5. Shadows = Dr. Mathematical = drawingwings8

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Writeacher

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