Question

7. The adjoining figure shows a rectangle and a
semicircle. The perimeter of the shaded region is
(a) 70 cm
(b) 56 cm
(c) 78 cm
(d) 46 cm
10 cm
14 cm
1:10​

Answer 1

Answer:

Heya Mate!!!

Step-by-step explanation:

where is the adjoining figure???

Can't understand your question

Answer 2

56 cm is The perimeter of the shaded region

Step-by-step explanation:

From Figure

Rectangle three sides and perimeter of semicircle

will be perimeter of shaded region

Diameter of Semicircle = 14 cm

Radius of Semicircle = 14/2 = 7 cm

Perimeter of semicircle = (1/2) * 2 π * Radius

π = 22/7

= (1/2) * 2( 22/7) * 7

= 22 cm

Rectangle three sides = 10 + 14 + 10

= 34 cm

Perimeter of shaded region = 22 + 34

= 56 cm

56 cm is the perimeter of shaded region

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