Volume formula of truncated cone: V truncated cone =1/3s+s'+√ (s * s') * h. 。

Student: Upper and lower areas

S': bottom area

tall

That is, frustum volume = 1/3* frustum bottom area+root sign (frustum bottom area multiplied by top area) * frustum height.

Volume formula of frustum: V=[S+S'+√(SS')]h÷3=πh(R? +Rr+r？ )/3