Answer: 72
Step-by-step explanation:
Answer:
72
Circumference of a circle = 2πr
Area of a circle: πr^2
Plug in:
C = 2πr
30.1 = 2(3.14)r
30.1 = 6.28r
r = 4.79 (Dividing both sides by 6.28)
Use area of the circle:
A = 3.14(4.79)^2
= 72.044474
Round to nearest whole number = 72
x=3
-7x-6=0
9x-7x-6=0
=9x-7x=0+6=6
2x=6
x=6/2=3
16 m^2
The area of a trapezoid is given by
A = 1/2 (b1+b2) *h
= 1/2 ( 6+10) * 2
= 16 m^2
