Given a circle with measures of (C, d, and r) and a circle with measures of (C', d', and r'), what is r' if C/C' = 0.75 and d = 6.0?

A) 2

B) 4

C) 8

D) 12

Question

Mathematics

Kinsley Butler

22 October, 11:48

Given a circle with measures of (C, d, and r) and a circle with measures of (C', d', and r'), what is r' if C/C' = 0.75 and d = 6.0?

A) 2

B) 4

C) 8

D) 12

+2

Answers (2)

Know the Answer?

Rey Gill · Answer 1

B

Step-by-step explanation:

All circles are similar and therefore proportional. C/C' is the ratio of Circle C to Circle C'. Since it is 0.75, this means that C is 75% of C'. We know that radius of C will also be 75% of the radiuc of C'. We can the radius because we know the diameter of Circle C is 6. The radius is therefore 3. 3 is 75% of 4. So r/r' or 3/4=0.75. r / must be 4.

Nyasia Carr · Answer 2

Answer: B) 4

Step-by-step explanation:

Got this right on USA test prep

Given a circle with measures of (C, d, and r) and a circle with measures of (C', d', and r'), what is r' if C/C' = 0.75 and d = 6.0?A) 2B) 4C) 8D) 12

Given a circle with measures of (C, d, and r) and a circle with measures of (C', d', and r'), what is r' if C/C' = 0.75 and d = 6.0?

A) 2

B) 4

C) 8

D) 12