Question

The volume of a cylindrical can is 1.54 litre. If the height is 20 cm, find its base area.​

Answer 1

Answer:

50.2505$cm^{2}$

Step-by-step explanation:

volume=1.54liters

since$1000cm^{3}=1 litre$

then the volume=1540$cm^{3}$

height=20cm

$volume=\pi r^{2}h$

volume=$\frac{22}{7} r^{2}20$

1000=$\frac{440}{7}r^{2}$

1000÷$\frac{440}{7}$=$r^{2}$

$r^{2} =15.9091$

r=3.9886cm

to find the base area the formula $\pi r^{2}$ is used

base area=$\frac{22}{7}(3.9886^{2} )$

base area= 50.2505$cm^{2}$