Question

1. The radius of a right circular cylinder is 7 cm and its height is 14 cm. Find its curved surface area and
total surface area.
2. Find the length of the diagonal of a cuboid of dimensions 10 m by 10 m by 5 m.​

Answer 1

Answer:

The radius of a right circular cylinder is 7 cm and its height is 14 cm. Find its curved surface area and

total surface area.

2. Find the length of the diagonal of a cuboid of dimensions 10 m by 10 m by 5 m.

Step-by-step explanation:

it's answer is 50m

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Answer 2

Step-by-step explanation:

1. given,

radius of right circular cylinder=7

height=14

CSA of cylinder= 2πrh

= 2*22/7*7*14

= 44*14

= 616

TSA of cylinder = 2πr(h+r)

= 2*22*7(14+7)

=44*21

= 924

2.given,

first dimension= 10

second dimension=10

third dimension= 5

diagonal of cuboid= √l^2+ b^2+ h^2

= √10^2+10^2+5^2

=√100+100+25

= √225

= 15 m