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lions [1.4K]
3 years ago
13

Please help me I really need help

Mathematics
1 answer:
algol133 years ago
5 0

Answer:

E. 9 times bigger

Step-by-step explanation:

Here's a made up example. Let's say that the radius of a circle is 5.

Circumference = 2πr

2π(5) = 31.42

Area = πr²

π(5)² = 78.54

If the circumference of a circle triples, that means that the radius also triples. So, the new radius is 15.

C = 2πr

C = 2π(15)

C = 94.26

A = πr²

A = π(15)²

A = 706.86

94.26 ÷ 31.42 = 3 ⇒ The circumference tripled.

706.86 ÷ 78.54 = 9 ⇒ The area is 9 times bigger.

Hope this helps. :)

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