Question

plzz give step by step explaination​

Answer 1

Answer:

${406 \: cm}^{2}$

Step-by-step explanation:

Area of the Flower bed = Area of Rectangle - (2× Area of 1 semicircle)

i.e., Area of the Flower bed

$= lb \: - ( 2 \times \frac{1}{2} \pi {r}^{2} )$

$= lb \: - \pi {r}^{2}$

From the diagram,

l = 40 cm

b = 14 cm

radius of the semicircle = 7 cm

$= 40 \times 14 - ( \frac{22}{7} \times 7 \times 7) \: c {m}^{2}$

$= 560 - 154 \: c {m}^{2}$

$= 406 \: c {m}^{2}$