cantu

I have a piece of cardboard that is twice as long as it is wide .I f I cut a 1-inch by 1-inch square from each corner and fold up the resulting flaps ,I get a box with a volume of 40 cubic inches.what are the dimensions of the cardboard?

the shorter leg of a right triangle is 5 yards.if the hypotenuse is 13 yards,how long is the other leg?

thank you

thank you!!