Question

The area of base of cone is 616sqm hright is 48m Then find TSA

Answer 1

Answer:

Total Surface Area = 1716 m²

Step-by-step explanation:

Area of base=616 m²

=πr²=616 m²

=r²=616×$\frac{7}{22}$m²

r²=196 m²

r=14 m

l=$\sqrt{h^{2}+ r^{2}$

l=$\sqrt{48^{2} + 14^{2}$

l=$\sqrt{2304+196}$

l=$\sqrt{2500}$

l=50 m

Curved surface area of cone=πrl

=$\frac{22}{7}$×14×25

=1100 m²

Total surface area of cone=πrl+πr²

=(1100+616) m²

=1716 m²