Answer: 39 untits 2
Step-by-step explanation:
Hi, to answer this question, first we have to calculate the perimeter (sum of sides) of the triangle:
Perimeter: 7+6+9.22 = 22.22 units
Then we have to apply the circumference (C) formula:
C = π x diameter
Since C = perimeter of the triangle:
22.22 = 3.14 d
22.22 /3.14 =d
7.08 = d
Finally, we apply the next formula:
Area of a circle = π (d/2)^2
Replacing:
A = 3.14 (7.08/2)^2 = 39.30 units2 = 39 units 2
