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3 years ago

7

A bird feeder is in the shape of a cylinder. It has a volume of about 100 cubic inches. It has a radius of 2 inches. What is the

approximate height of the bird feeder? Use 3.14 for pi

2 answers:

slava [35]3 years ago

8 0

Answer:

8 inches

Step-by-step explanation:

The height is 7.96 and when you round that you get 8 inches.

harina [27]3 years ago

7 0

Approximately 7.96 inches

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A circular garden has a radius of 4 meters. What is the area of the garden? Use 3.14 as an approximation for .

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Find the length of side BC.<br> Give your answer to 3 significant figures.

Ksju [112]

Answer:

BC ≈ 19.4 cm

Step-by-step explanation:

Using the cosine ratio in the right triangle

cos71° = $\frac{adjacent}{hypotenuse}$ = $\frac{AB}{BC}$ = $\frac{6.3}{BC}$ ( multiply both sides by BC )

BC × cos71° = 6.3 ( divide both sides by cos71° )

BC = $\frac{6.3}{cos71}$ ≈ 19.4 cm ( to 3 significant figures )

7 0

3 years ago