Question

Mathematics teacher of a school took her 10th standard students to show Red fort. It was a part of
students. Then the teacher said in this monument one can find combination of solid figures. There
their Educational trip. The teacher had interest in history as well. She narrated the facts of Red for
2 pillars which are cylindrical in shape. Also 2 domes at the comers which are hemispherical7
smaller domes at the centre. Flag hoisting ceremony on Independence Day takes place near these doms



(i) how much cloth material will be required to cover 2 cylindrical pillars each of
radius 2.5meters & height 7cm? (Take n = 22/7)
a) 75m2
b) 78.57 m2
c) 87.47 m2
d) None
(ii) Write the formula to find the volume of a big dome.
2) 2/3πr3
b) 2/3 πr2
c) 4/3 πr3
d) 4πr2
(ii) Find the lateral surface area of two pillars if height of the pillar is 7m and
radius of the base is 1.4m.
a) 61.54 m2 b) 123.2 m2
c) 90 m2
d)None
(iv) How much is the volume of a hemisphere if the radius of the base is 3.5m?
b) 80 m
a) 39.06 m3
c) None
d) 718.013m3​

Answer 1

Answer:

Two easy.

i) d. none

ii) 2/3πr^3

iii)123.2m^2

iv) none

Step-by-step explanation:

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