I need help I don’t understand how to do it

7.2 inches

Step-by-step explanation:

area of a rhombus = base x height

to find the base (length) of the rhombus you rearrange this equation so that it becomes

base = area / height

base =  21.6in² /  3

base (length) = 7.2in

hope this helps :)

i dont know it

step-by-step explanation:

answer: yard ramps with a level off platform are typically 36 feet long. truck, rather than at an angle, enabling access to those pallets at the very back of the truck. if you are using your yard ramp to convert a loading dock into a drive-in door, we even at 60 inches (5 feet) high and a 30 foot ramp, the slope of the ramp will be less

step-by-step explanation: