Question

find the area of the iron sheet required to prepare a cone with basw is 24cm hight with base radius 7cm​

Answer 1

Step-by-step explanation:

Area of a cone = πrl •••{l is the slant height}

To find l, l^2 = √r^2 +h^2

so, l^2=√7^2+24^2

l^2=√49+576

l^2=√625

then l= 25cm

Now, area of cone =22/7*7cm*25cm

=550cm^2 {area always to be written in square}

so, the area of iron required to prepare a cone is about 550cm^2

hope it's helpful to you...