Evaluate the formula to find the number of cubic inches (in3) for volume of a box with L = 8 cm. W = 4 cm, and H = 5 cm.

2nd one in the first row is correct

v = 1/3 a^2h

step-by-step explanation:

the volume is 1/3 a^2h.

about 0.75 hours

step-by-step explanation:

we have three similar triangles, because each has a right angle and shares an angle.   let's write the angles in order: opposite to short leg, long leg, hypotenuse.

cab similar to bad similar to cbd

or as ratios,

ca: ab: cb = ba: ad: bd = cb: bd: cd

we also know

ac = ad + cd

(ad+cd): ab: cb = ba: ad: bd = cb: bd: cd

(ad+cd)/cb=cb/cd

we have cb=6, ad=5 and seek x=cd.

we reject the negative root and conclude x=4

answer: 4