Arectangle and a triangle have the same area, 72 . the height of the triangle is also the same as the width of the rectangle. the base of the triangle is 18 in., and the length of the rectangle is 9 in. find the missing dimension.

Part 1) The height of triangle is

Part 2) The width of rectangle is

Step-by-step explanation:

step 1

Find the dimensions of triangle

The area of triangle is equal to

we have

substitute and solve for h

step 2

Find the missing dimension of rectangle

we have that

The height of the triangle is the same as the width of the rectangle

therefore

c.

step-by-step explanation:

because first you have to add the 4x, 9x, and the 7x together and you get 20x and then you add the last numbers up and you get 5and then you put the subtraction sign in there and that's how you get the answer.