The area of the circular base of a cone is 616 cm^2 and its height is 48 cm find its whole surface area
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Answer:
2816 sq.cm
tep-by-step explanation:
Area of the circular base=616 cm^2
πr^2=616
22/7 × r^2=616
r^2=(616×7)/22
r^2=196
r=√196
r=14 cm
Height of the cone=48 cm
Slant height(l)=√r^2+h^2
=√14^2+48^2
=√196+2304
=√2500
l=50 cm
TSA of the cone=πr(r+l)
=22/7 ×14(14+50)
=22×2(64)
=44(64)
=2816 sq.cm
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