Question

Curved surface area of the cylinder where radius 0.8 and height 1.25 m?
Total surface area of the cylinder?

Answer 1

$\pi \: r ^{2} h$
3.14×0.8×0.8×1.25

2pir (r+h)
2×3.14×0.8×1.33

Answer 2

r = 0.8 , h = 1.25
curved surface area = 2 ×22/7×r×h
=44/7 ×1.25×0.8
=6.2857 &
total s area = curved s area + 2×22/7×(0.8)^2
=6.2857m^2 +4.023m^2
= 10.3087m^2 aprox