Question

Please do all i need helppppppp

Answer 1

1. 31.4m

2. 26ft

3. 25.12 cm

4. 50.24 in

5. 15.71 meters

6. 380.13 inches

7. 7.5meters

8. 47.1 feet

Explanation:

to find the circumference you do 2 x 3.14 x radius

to find the area you do radius squared x 3.14

Answer 2

1. 30 metres

2. 27 squared feet,

3. 25.13 cm

4. 50.27 sqared inches

5. 15.71 metres

6. 380.13 squared metres

7. Area is: 4.52 squared metres Circumference is: 7.54 metres

8. Circumference is: 47.12 feet Area is: 176.71 squared feet

Explanation:

1. Since you're rounding pi, your calculation would be:

2 × 3 × 5 = 30

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2. Since you're rounding pi, it would be:

3 × 3² = 27

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3. Use the formula for number 5

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4. Use the formula in number 6

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5. Formula for the circumference of a circle is:

`C=2\pi r`

So:

2 × 3.14 × 2.5 = 15.71

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6. Formula for the area of a circle is:

`A=\pi r^2`

So:

3.14 × 121 = 380.13

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7. Use the formula for numbers 5 and 6 to figure these out

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8. Use the formula for 5 and 6, except divide the diameter by 2 because the formula only works with the radius

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Have a good day :)