Answer:
a) 52
b) 21 + 6.25π
Step-by-step explanation:
Part (a)
the sides which we don't have:
(longer side): 7+6 = 13m
(shorter side): 13—8= 5m
So:
Perimeter = 2P = 13+5+7+8+6+13=52
Part (b)
perimeter of the half circle:
[tex]\pi \times {r}^{2} = \pi \times {2.5}^{2} = 6.25\pi[/tex]
So:
Perimeter = 2P = 2×8 + 5 + 6.25π = 21 + 6.25π
