Question

*please help me..its needed
it would be grateful to u if u help..​

Answer 1

Answer:

Volume of shape=1078+1257.66=2335.66 cm³

TSA Of shape=176+154=330 cm²

Step-by-step explanation:

The shape is combination of 1 cylinder + 2 hemisphere

Total height=35 m

if h is height of cylinder then

h+2*3.5=35

h=35-7=28 cm

so the Volume of the cylinder

=πr²h

=22/7*3.5*3.5*28

=22*3.5*3.5*4

=1078 cm²

Volume of 2 hemispheres= volume of 1 sphere

=4/3*πr³

=(4/3)(22/7)(3.5*3.5*3.5)

=1/3*11*7*7*7

=1257.66 cm²

Volume of shape=1078+1257.66=2335.66 cm³

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Now CSA of cylinder=2πrh

=2*22/7 *28=44*4=176 cm²

CSA of 2 2 hemispheres= TSA of 1 sphere

4πr²=4*22/7*3.5*3.5

=22*7=154 cm²

TSA Of shape=176+154=330 cm²