Answer:
Option A. 191cm²
The area of the circle is 191 cm²
Step-by-step explanation:
To solve this problem we need to use the area formula of a circle:
a = area
r = radius = 7.8cm
π = 3.14
a = π * r²
we replace with the known values
a = 3.14 * (7.8cm)²
a = 3.14 * 60.84cm²
a = 191.03 cm²
The area of the circle is 191.03 cm²
