Equations for Geometric Problems Quick Check
1. An illustration shows a parallelogram with the left side labeled upper C and the right side labeled upper D. A dotted line, labeled upper B, runs from the top left vertex to the bottom right vertex. The base is extended to the right by a second dotted line. A dashed line, labeled upper A, runs from the top left vertex to the base, meeting the dotted base line. The three dotted lines form a triangle. Which dimension can be used in an equation that models finding the area of the parallelogram?
a)B.
b)A.
c)C.
d)D.
2. A rectangular garden has an area of 91 ft.² and a length of 13 ft. How would you write an equation to model finding the width of the garden?
a)w = 91 (13)
b)91 = 13w
c)13 = 91w
b)w = 13/91
3. An illustration shows a rectangle. The center is labeled A equals three fourths of a square yard. The width measures one half yard.Solve the equation 3/4=1/2 l to find the length of the tabletop.
a)1 1/4 yd.
b)1/4 yd.
c)1 1/2 yd.
d)3/8 yd.