Mathematics teacher of a school took her 10th standard students to show Red
fort. It was a part of their Educational trip. The teacher had interest in history
as well. She narrated the facts of Red fort to students. Then the teacher said
in this monument one can find combination of solid figures. There are 2 pillars
which are cylindrical in shape. Also 2 domes at the corners which are
hemispherical. 7 smaller domes at the centre. Flag hoisting ceremony on
Independence Day takes place near these domes.
i)
How much cloth material will be required to cover 2 big domes each of radius
2.5 metres? (Take I = 22/7)
a) 75m?
b) 78.57m?
C) 87.47m2 d) 25.8m?
b)
Write the formula to find the volume of a cylindrical pillar.
a) Mrah b) Irl
c) Mrl + r) d) 2017
Find the lateral surface area of two pillars if height of the pillar is 7m and
radius of the base is 1.4m.
a) 112.3cm?
b) 123.2m2
c) 90m2
d) 345.2cm
iv)
How much is the volume of a hemisphere if the radius of the base is 3.5m?
a) 85.9 m
b) 80 m
c) 98 m
d) 89.83 m
m
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Answer:
Hi
Step-by-step explanation:
85.9 m
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