8. Ahemisphencal bowl is made ofbrass, 0.25 ăthickness.The innerr

1.	8. Ahemisphencal bowl is made ofbrass, 0.25 ăthickness.The innerradius ofthe bowlis 5 cm. Find the ratio of outer surface area to inner surface area.
Answer» Inner radius of hemispherical bowl = 5 cm Thickness of the bowl = 0.25 cm ∴ Outer radius (r) of hemispherical bowl = (5 + 0.25) cm = 5.25 cm Outer CSA of hemispherical bowl = 2πr2 = 2 x 22/7 x (5.25 cm)2= 173.25 cm2 Therefore, the outer curved surface area of the bowl is 173.25 cm2. please like the solution 👍 ✔️👍

8. Ahemisphencal bowl is made ofbrass, 0.25 ăthickness.The innerradius ofthe bowlis 5 cm. Find the ratio of outer surface area to inner surface area.

Answer»

Inner radius of hemispherical bowl = 5 cm

Thickness of the bowl = 0.25 cm

∴ Outer radius (r) of hemispherical bowl = (5 + 0.25) cm

= 5.25 cm

Outer CSA of hemispherical bowl = 2πr2

= 2 x 22/7 x (5.25 cm)2= 173.25 cm2

Therefore, the outer curved surface area of the bowl is 173.25 cm2.

please like the solution 👍 ✔️👍