Question

Find the vertical height of a pyramid with volume 100 cm^3 and a rectangular base of 4 cm by 5 cm

Answer 1

Answer:

the height is 15cm.

i hope this helps!!

Step-by-step explanation:

the formula to find the volume of a pyramid is $\frac{l b h}{3}$ where $l$ is the length, $b$ is the breath and $h$  is the height.

$l$ = 5 cm;

$b$ = 4 cm;

$h$ = ?;

$v$ = volume = 100 cm³

now let's use the formula.

$v = \frac{lbh}{3}$

$3\frac{v}{lb} = h$

[we take all the known values except height to the other side because we need to find height]

now we need to substitute the known values

$3 \frac{100}{4*5} = h$

$3 \frac{100}{20} = h$ [100 and 20 get divided which gives 5]

$3 * 5 = h$

$15 = h$