Question

The cloth require to cover the hemispherical dome if the radius of its base is 14m
22
T =
is (Take
7
a) 1222 sq.m b)1232 sq m c) 1200 sq. m
d) 1400 sq.m​

Answer 1

Question-

Find the cloth require to cover the hemispherical dome if the radius of its base is 14m

Solution -

Given,

radius(r) = 14m

We know that,

$curved \: surface \: area \: of \: hemisphere = 2\pi {r}^{2}$

$Curved \: surface \: area = 2 \times \frac{22}{7} \times ( {14})^{2}$

$Curved \: surface \: area = 2 \times \frac{22}{7} \times 14 \times 14$

$Curved \: \: surface \: \: area = 1232$

Therefore the required cloth to cover the hemispherical dome is 1232m²

Related Formulae -

$1)Curved \: surface \: area \: \\ of \: hemisphere = 2\pi {r}^{2}$

$2)total \: surface \: area \: of \\ \: hemisphere = 3\pi {r}^{2}$

$3)volume \: of \: hemisphere = \frac{2}{3} \pi {r}^{3}$

$4)surface \: area \: of \: sphere = 4\pi {r}^{2}$

$5)volume \: of \: sphere = \frac{4}{3} \pi {r}^{3}$

Answer 2

Answer:

answer is 1232 said m

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