Math, asked by hamzah03, 1 year ago

can someone please answer these questions with working

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Answered by Anonymous
0
hii!!

here's ur answer...

1.given:-

radius=5.5cm

height=10cm

TSA=2πr(h+r)

=2×22/7×5.5(10+5.5)

=44/7×5.5×15.5

=852.5/7cm²

2. given:-

radius=10.5cm

height=11.5cm

TSA=2πr(h+r)

=2×22/7×10.5(11.5+10.5)

=44/7×10.5×22

=10164/7

=1452cm²

hope this helps...

siddhartharao77: I think the 1st one should be 3751/7
hamzah03: idk
Answered by siddhartharao77
3
(1) Given radius = 5.5cm.

Given height = 10cm.


We know that TSA of the cylinder = 2pir(r + h)

                                                         = 2 * 22/7 * 5.5(5.5 + 10)

                                                         = 2 * 22/7 * 5.5(15.5)

                                                         = 2 * 22/7 * 85.25

                                                         = 3751/7

                                                         = 535.8cm^2.



(2)Given radius = 10.5cm.

Given Height = 11.5cm.

We know that TSA of the cylinder = 2pirh

                                                         = 2 * 22/7 * 10.5(10.5 + 11.5)

                                                          = 2 * 22/7 * 10.5(22)

                                                          = 2 * 22/7 * 231

                                                          = 10164/7

                                                          = 1452cm^2.



Hope this helps!
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