Answer:
a) (13π +12) cm or 52.84 cm
b) (42.25π + 78) cm² or 210.73 cm²
Step-by-step explanation:
a) This shape is combination of circle with diameter 13cm and rectangle that has a width of 6cm.
Perimeter is circumference of circle + 2*6 (width)
C =πd
C = circumference
π = the constant
d = diameter where diameter is just the radius times two,
C = 13π + 12 = 52.84 cm
b) The area of the shape is the area of circle with radius 13/2 cm + area of rectangle of width 6cm and length of 13cm.
A of circle = πr² = π(6.5)² = 42.25π = 132.73 cm²
A of rectangle = l x w = 13 x 6 =78 cm²
Total A = 132.73 + 78 = 210.73 cm² or 42.25π + 78
