Formulas
What is the area of a square?
l x w
The length of the rug is 11 inches and the width of the rug is 10 inches. What is the area of the rug?
110 inches2
Parallelogram
base =12 units
Height = 15 units
180 units2
You have a rectangular prism with 2 square face and 4 rectangle faces. What is the area of the both square faces if the length is 5 and the width is 7.
35 units2 x 2 = 70 units2
L = 12 cm
W=6 cm
H=15 cm
1,080 cm3
What is the area of a parallelogram?
b x h
A square has an area of 100. What is the length of one side?
10
On a triangle I draw the height where?
perpendicular; from the base to the opposite vertex
You have the net of a square pyramid. The base of the square is 8ft. The height of the triangle is 9ft. What is the surface area of the shape?
208ft2
Alice wants to fill a box with the length of 8 inch, height 6 inch, and width 4 inch. What is the volume?
192 inches3
What is the formula for volume?
V=l x w x h
The area of a parallelogram is 48 inches squared. The base is 6 inches. What is the height?
8 inches
Find the area of the trapezoid with the following:
b1=8cm
b2=10cm
height=15cm
135cm2
What makes a pyramid a pyramid?
Triangular Faces; faces meet at a single vertex
I use these to help me find the side lengths to calculate the volume
edges
What is the formula for a triangle?
bxh divided by 2
Kevin needs to buy some cardboard to build a box 12 inches long, 8 inches wide, and 10 inches high. How much cardboard is needed to build the box?
A. 592 square inches
The area of a square is 64 in2 what is the length of each side of the square?
8 inches
What makes a prism a prism?
Rectangular faces; two matching bases
V=?
H=13
L=12
W=10
1560units3
What is the formula for a trapezoid?
base 1 + base 2 divided by 2 times height
A right triangle has the base of 16cm and a height of 20cm. What is the area?
160cm2
What is the area of 2 triangles with a base of 15cm and a height of 25cm?
375cm2
What is surface area?
The total area of all faces
What is the length of rectangular prism when the width is 7 and the height is 11. The volume is 1,155
Length is 15