Q. 4 C4.5( 4 Votes )

# <span lang="EN-US

Surface area of toy = Area of hemisphere + Area of cylinder + area of cone

Area of hemisphere

= 628cm2

Height of cone = 60 - 10 = 40cm

Area of cylinder = 2 π × r × h

= 2× 3.14×10×40

= 2512cm2

Height of cone = 10cm

Radius of base of cone = 10cm

Area of cone = π × r × l

= π × 10 × 14.1

= 443cm2

Total area = 628 + 2512 + 443 = 3583 cm2

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