Question

What is the sum of the areas of circle C and circle D?

7 units
14 tt units
49 T units
98 units
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Answer 1

The sum of areas of circle C and circle D is 98
`\pi` square units, it is obtained from the attachment.

Explanation:

The given is,

For the above question diagram is missing, so i attach the diagram

C, D points in the attachment is the center of circle C and D

Radius of circle C and D is 7 units

Step: 1

Formula for area of circle,

`A=\pi r^(2)`..............................(1)

Where, r - Radius of circle

Step: 2

Area of circle, C

Radius of circle C, r = 7 units

Equation (1) becomes

`A_(C)=\pi (7)^(2)`

`A_(C) = 49\pi` square units

Area of circle, D

Radius of circle D, r = 7 units

Equation (1) becomes

`A_(D)=\pi (7)^(2)`

`A_(D) = 49\pi` square units

Step: 3

Sum of areas of circle C and D,

= Area of circle C + Area of circle D

= 49
`\pi` + 49
`\pi`

= 98
`\pi` Square units

Result:

The sum of areas of circle C and circle D is 98
`\pi` square units, it is obtained from the attachment.