Answer:
c)
6.1 x 5 = 30.5
6.1 + 12.9 = 19
19/2 = 9.5
9.5 x 10= 95
95 + 30.5 = 125.5 cm squared
d) 4.1 x 4.7 = 19.27
2.05 squared x pi = 13.5
13.5 /2 = 6.6
19.27 + 6.6 = 25.87 cm squared
e) 16 x 22 = 352
352/2= 176
pi x 11 squared = 95.03
95.03+176 = 271.03 cm squared
f) 8 x 8 =64
pi x 4 squared= 50.27
50.27 x 3 = 150.81
150.81 + 64 = 214.81cm squared
