Question

29. In the given figure, the shaded part shows
that area at which 'DIWALI CARNIVAL
program is situated then find the area of
Diwali Carnival, if radii of both concentric
circles are 7 cm and 3.5 cm.
Diwali carnival
3.5 cm
0-
30
- 7 cm​

Answer 1

Answer:

Hi

Step-by-step explanation:

Option 4 = -7 cm

Answer 2

In the given figure, the shaded part shows  that area at which 'DIWALI CARNIVAL  program is situated

Area of shaded portion = Area of bigger sector - Area of smaller sector

Area of sector = ∅/360° × π × r²

Area of shaded portion = ∅/360° × π × r1² - ∅/360° × π × r2²

= ∅/360° × π ( r1² - r2²)

= 30°/360° × 22/7 ( 7² - 3.5²)

= 1/12 × 22/7 × 36.75

= 9.625 cm²

Therefore, the area of shaded portion is 9.625 cm²