Math, asked by faisalalam, 1 year ago

the csa of cone is 12320 sq cm if the radius of its base is 56cm, find its hieght

Answers

Answered by hari49
0
12320 x 7/22x56 = 70
Slant height square = r square + height square.
70 cm = 56 cm + height square.
4900-3136= height square.
1764 = height square
So height = 42 cm

hari49: Hope it's help you.
hari49: In 3rd line we have forgot write square after 56 cm .
Answered by rudeawakening
1
CSA of a cone = pi x r x l 
 12320 = 22/7 x 56 x l
l = 70 cm

l^2 = r^2 + h^2
h = 42 cm

hope it helps!!
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