Question

can someone please answer this question with working

Answer 1

Given that Height h = 7cm.

Given that radius of its base r = 10cm.

We know that TSA  = 2pir(r + h)

                                 = 2 * 22/7 * 10(10 + 7)

                                 = 2 * 22/7 * 10(17)

                                 = 44 * 170/7

                                 = 7480/7

                                 = 1068.5cm^2


Hope this helps!

Answer 2

total surface area=
2π×radius×height+ 2×π×radius^2
2×π×10×7 + 2×π×10×10
440 + 628.57 = 1068.57cm^2