8.3 Area of Squares and Rectangles 429
Maize Maze
Brett Herbst transforms cornfields into mazes. His maze
in Utah, shown at the right, is in the shape of Utah.
31. What is the area covered by the maze,
which is made up of two rectangles?
32. How many acres does the maze
cover? (1 acre 5 43,560 square feet)
33. Suppose corn seed costs $34 per
acre and fertilizer costs $57 per acre.
How much will it cost to seed and
fertilize a field with the same
dimensions as the maze?
34.
Multi-Step Problem
The polygon below is made up of rectangles.
a. Write an expression for the area of
the polygon.
b. Suppose the area is 65 square units.
Find the value of x.
c. Using your results from part (b),
sketch the figure and label all of
its dimensions.
Congruent Parts
Use the diagram of parallelogram ABCD. Match
the segment or angle with a congruent one. Give a reason for your
answer.
(Lesson 6.2)
35.
CE&*
A. AB
&*
36. CD
&*
B. aADC
37. aABD C. AE
&*
38. aCBA D. aCDB
Determining Similarity
Determine whether the triangles are similar.
If so, state the similarity and the postulate or theorem that justifies
your answer. (Lesson 7.4)
39. 40.
Comparing Numbers
Compare the two numbers. Write the answer
using <, >, or 5.
(Skills Review, p. 662)
41. 8 and 218 42. 2459 and 2495 43. 210 and 0
44. 21.12 and 21.01 45. 2.44 and 2.044 46. 20.75 and 20.7
Algebra Skills