Big Ideas Math: Modeling Real Life, Grade 6
BI
Big Ideas Math: Modeling Real Life, Grade 6 View details
7. Volumes of Rectangular Prisms
Continue to next subchapter

Exercise 15 Page 330

Remember the formula for the volume of a prism.

h = 20cm

Practice makes perfect

From the picture, we know the dimensions of the flower vase, which is a prism. The exercise is to find the height h of the prism. Let's see the diagram!

Now we can see that the prism has the width w of 9 centimeters and the base length l of 9 centimeters. The volume V of the prism is 1620 cubic centimeters. The volume of a rectangular prism with length l, width w, and height h can be calculated using the following formula. V=l wh We can substitute the known values into this formula and solve for the height h. Let's do it!
V=l wh
â–Ľ
Solve for h
1620= 9 ( 9) ( h)
1620=81h
1620/81=81h/81
20=h
h=20
The missing dimension of the flower vase, which is the height of the prism, is 20 centimeters.