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
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Answered by
2
Answer:
Heya Mate!!!
Step-by-step explanation:
where is the adjoining figure???
Can't understand your question
Answered by
3
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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