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dolphi86 [110]
3 years ago
12

Given teo circles whose radii are 9" and 24", the ratio of thuer circumfrence is?

Mathematics
1 answer:
saul85 [17]3 years ago
5 0

Answer:

The ratio is 3:8

Step-by-step explanation:

The circumference of a circle can be calculated using the formula;

C = 2 * pi * r

for 9 inches;

C = 2 * pi * 9 = 18 pi inches

For 24 inches;

C = 2 * pi * 24 = 24 pi inches

The ratio is thus;

18 pi : 48 pi

divide through by 6 pi

= 3: 8

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In triangle ΔABC, ∠C is a right angle and CD is the height to
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Answer:

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The triangles are drawn below.

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m\angle CDB=90\\m\angle CBD=90-\alpha\\m\angle BCD=\alpha\\\\m\angle CDA=90\\m\angle CAD=\alpha\\m\angle ACD=90-\alpha

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3 years ago
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