Question

the shape of Garden is rectangular in the middle of the semicircular at the end shown in the diagram find the area of the perimeter of the ​

Answer 1

Answer:

area of garden = 178.5 cm^2

perimeter of garden = 131 cm

Step-by-step explanation:

r = 7/2 cm ; l = 20cm ; b = 7 cm

area of garden = area of rectangle + area of semicircle×2

                         = l × b + 2 × 1/2 × π r^2

                        = 20 × 7 + 22/7 × 7/2 × 7/2

                        = 140 + 38.5

                         = 178.5 cm^2

perimeter of garden = perimeter of rectangle + perimeter of semicircle×2

                                  = 2 ( l + b ) + 2 × 1/2 × 2πr

                                  = 2 ( 20 + 7 ) + 2 × 22/7 × 7/2 × 7/2

                                =   54 + 77

                                 = 131 cm

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