Question

A cylinder has hemispherical ends having radius 14 cm
and height 50 cm. Find the total surface area. Also
coloured curve surface area 5 per cmº find cost to the
colour ?





Q 34

Answer 1

Dear Student,

◆ Answer -

Total surface area = 6864 cm^2

Cost of colouring = Rs 34320

● Explanation -

Total surface area of given object is -

Total surface area = curved surface area of cylinder + 2 × outer surface area of hemisphere

Total surface area = 2πrh + 2 × 2πr^2

Total surface area = 2πrh + 4πr^2

Total surface area = 2πr (h + 2r)

Total surface area = 2 × 22/7 × 14 (50 + 2×14)

Total surface area = 6864 cm^2

Cost of colouring is given by -

Cost of colouring = 6864 × 5

Cost of colouring = Rs 34320

Thanks dear. Hope this helps you...

Answer 2

Answer:

Hopefully it Helps you!!!