slant height of cone formed by rolling a semicircle of diameter 28cm
Answers
Given : cone formed by rolling a semicircle of diameter 28cm
To Find : slant height of cone formed
Solution:
Diameter of circle = 28 cm
=> Radius of circle = diameter /2 = 28/2 = 14 cm
When arc of circle is rolled to form a cone
Then radius of arc become slant height of cone
hence slant height of cone formed will be 14 cm
Additional Info :
and perimeter of base of cone = arc length
=> perimeter of base of cone = 14π
=> radius of cone = 7 cm
slant height of cone formed will be 14 cm
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