Question

i will mark you as brainliest please answer hurry
show all of your working out

Answer 1

SoluTion :-

Volume of the cylinder :

$\sf {Volume = \pi r^{2}h}\\\\\\\sf {Volume = \pi \times 40^{2} \times 70}\\\\\\\sf {Volume = 352000\ cm^{3}}$

Volume of the cuboid :

$\sf {Volume = Length \times Breadth \times Height}\\\\\\\sf {Volume = 80 \times 80 \times 140}\\\\\\\sf {Volume = 896000\ cm^{3}}$

Total volume :

$\sf {= 352000 + 896000}\\\\\\\sf { = 1248000\ cm^{3}}$

Mass of steal :

$\sf {1\ cm^{3} = 8.05g}\\\\\\\sf {1248000\ cm^{3} = 1248000 \times 8.05}\\\\\\\sf {1248000\ cm^{3} = 10,046,400 g/cm^{3}}$

$\sf {10,046,400 g/cm^{3} = 10,046,400 \div 1000000\ tonnes/cm^{3}}\\\\\\\sf {10,046,400 g/cm^{3} = 10.0464\ tonnes/cm^{3}}$

Answer 2

Answer:

• pls mark as brainliest
• thank me