anonymous 5 years ago Find h. V = 896 cm3

1. anonymous

2. anonymous

The volume of any pyramid is 1/3 x (base) x (perpendicular height). Here, the base is $\frac{1}{2}(12+20)h=11h$from area of trapezoid, and so we have from the volume formula,$V=\frac{1}{3}(11h)24=88h$But V = 896 cm^3, so$896=88h \rightarrow h=\frac{896}{88}=10\frac{2}{11}cm$

3. anonymous

ok thank