Question

he shaded region in each figure:
7 cm
8 cm
(b)
Fig. 15.44 find the area of the shaded region
answer h 132 integer 11/28​

Answer 1

Answer:

Area of shaded region = 132 + 11/28 cm²

Step-by-step explanation:

Diameter of the big circle = (8 + 7) cm = 15 cm

Area of big circle = π × 15/2 × 15/2 cm²

= π × 225/4 cm²

= π/4 × 225 cm²

Area of semicircle with diameter 7 cm = π/2 × 7/2 × 7/2 cm²

= π/2 × 49/4 cm²

= π/8 × 49 cm²

Area of semicircle with diameter 8 cm = π/2 × 8/2 × 8/2 cm²

= π/2 × 64/4 cm²

= π/8 × 64 cm²

Area of shaded region = π/4 ( 225 - 49/2 - 64/2) cm²

= π/4 (450 - 49 - 64)/2 cm²

= π/8 × 337 cm²

= 22/7 × 337/8 cm²

= 11/7 × 337/4 cm²

= 3707/28 cm²

= 132 + 11/28 cm²

Answer 2

Answer:

There is your answer...

Thank you.

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