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What is the sum of the areas of circle C and circle D?
7 units
14 units
49 units
98 units

Help Please

What is the sum of the areas of circle C and circle D 7 units 14 units 49 units 98 units Help Please class=

Respuesta :

Answer:

D

Step-by-step explanation:

Circle C and D both have a radius of 7.  So the sum of their areas is:

A = π(7)² + π(7)²

A = 98π

Answer:  The correct option is

(D) 98π units².

Step-by-step explanation:  We are given to find the sum of the areas of circle C and circle D.

From the figure, we note that

both the circle s C and D have equal radii given by

r = 7 cm.

Also, we know that the area of a circle with radius r units is given by

[tex]A=\pi r^2.[/tex]

Therefore, the sum of the area of circle C and D is given by

[tex]S=2A=2\pi r^2=2\times \pi\times7^2=2\times49\pi=98\pi~\textup{sq. units}.[/tex]

Thus, the required sum of the areas is 98π units².

Option (D) is CORRECT.