Answer:
P = 76.56cm
A = 230.24cm^2
Step-by-step explanation:
Perimeter:
Perimeter of a Rectangle:
2x + 2y
2 * 18 + 2 * 10 = 56cm
Perimeter (Circumference) of a Circle:
D*pi
R (Radius) = 8
D (Diameter) = 8 * 2 = 16
16 * pi = Circumference of the whole circle.
You only need 1 quarter.
4 * pi = 12.56cm
8cm = length of vertical side.
Rectangle + Quarter of Circumference + Vertical length = Perimeter
56 + 12.56 + 8 = 76.56cm
Area:
Rectangle = A * B = 18 * 10 = 180cm^2
Circle = Pi * r^2 = Pi 8^2 = Pi * 64
You only need one quarter of the area of the circle.
So, 64/4 = 16. Area = Pi * 16.
180cm^2 + 3.14 * 16 = 230.24cm^2
