Question

Consider the figure below with circles R, C, and D below, where circle R and circle D are

congruent. If RA = 42 and CE = 32, then answer the questions below.
R
D
424
E
32
с
Part A: Determine CA + ED.
Part B: Determine the combined circumference of all three circles.

Answer 1

a) CA + ED = 74

Explanation:

The complete question is attached in the image

Solution

Here the two circles R and D are congruent and thus their radius will be equal

Hence, RA (radius of circle R ) = DE (radius of circle D)

Hence, CA + ED = CA + 42

Also, RC = CD

CA = CE + RA = 32

So, CA + EO = 32 +42 = 74