Answer:
98π cm²
Step-by-step explanation:
A circle is a plane figure. A circle is the locus of a point such that its distance from a given point is always constant.
We can see that both circle C and circle D are equal with a radius of 7 cm.
Area of circle C = π* radius² = π * 7² = 49π cm²
Area of circle D = π* radius² = π * 7² = 49π cm²
The sum of the areas of circle C and circle D = Area of circle C + Area of circle D = 49π + 49π = 98π cm²
Simple enough:
Solve for V:
V/2 + 6 = 14
Put each term in V/2 + 6 over the common denominator 2: V/2 + 6 = V/2 + 12/2:
V/2 + 12/2 = 14
V/2 + 12/2 = (V + 12)/2:
(V + 12)/2 = 14
Multiply both sides of (V + 12)/2 = 14 by 2:
(2 (V + 12))/2 = 2×14
(2 (V + 12))/2 = 2/2×(V + 12) = V + 12:
V + 12 = 2×14
2×14 = 28:
V + 12 = 28
Subtract 12 from both sides:
V + (12 - 12) = 28 - 12
12 - 12 = 0:
V = 28 - 12
28 - 12 = 16:
Answer: V = 16