Step-by-step explanation:
with "capacity" of an object we usually mean the volume (how much fits inside).
and so, this has to be given in centimeters cube : cm³.
and NOT in centimeters square.
you must have made a mistake here. if not, and your teacher really wrote centimeters square, please send him/her my best regards. I would like to speak with this person.
so, this tin is actually a cylinder.
with a diameter of 10 cm, and a height of 3.5 cm.
the volume (capacity) of such a cylinder is simply
base area × height.
and the base area is a circle, which is
pi × radius²
with the radius being half of the diameter.
so, in our case
pi × (10/2)² = pi × 5² = 25pi cm²
notice that for an area we use indeed cm².
so, for the volume (capacity) we get
25pi × 3.5 = 87.5pi = 274.8893572... cm³ ≈ 275 cm³
