Question

Find the total surface area of hemi-sphere of radius 10 cm.( use π = 3.14) *



a) 900sq.cm

b) 952 sq.cm

c) 942 sq.cm

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Answer 1

Answer:

tsa = 3.14 ×3×10×10

= 9.42 ×10×10

=942 sq. cm

Answer 2

Answer:

$total \: surface \: area = 3\pi \: r \\ = 3 \times \frac{22}{7} \times 10 \\ \\ = 94.2cm {}^{2}$