Real Numbers And The Pythagorean Theorem Worksheet - Chapter 7 Page 28
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46Which number is greater? Explain.
—
—
—
3
√
√
√
15 , −3.5
—
3
3
26.
20 , 10
27.
28.
133 , 10
4
√
—
—
—
—
2
16
√
√
√
30. −
0.25 , −0.25
31. −
182 , −
—
—
29.
,
192
3
81
Use the graphing calculator screen to determine
whether the statement is true or false.
—
√
10 = 3.1.
32. To the nearest tenth,
—
√
33. The value of
14 is between 3.74 and 3.75.
—
√
34.
10 lies between 3.1 and 3.16 on a number line.
35.
FOUR SQUARE
The area of a four square court
is 66 square feet. Estimate the side length s to
the nearest tenth of a foot.
36.
CHECKERS
A checkers board is 8 squares long
and 8 squares wide. The area of each square
is 14 square centimeters. Estimate the
s
perimeter of the checkers board to the
nearest tenth of a centimeter.
Approximate the length of the diagonal of the square or rectangle to the nearest tenth.
37.
38.
39.
4 cm
10 in.
6 ft
8 cm
18 in.
6 ft
—
√
40.
WRITING
Explain how to continue the method in Example 2 to estimate
71
to the nearest hundredth.
41.
REPEATED REASONING
Describe a method that you can use to estimate
—
3
√
a cube root to the nearest tenth. Use your method to estimate
14 to the
nearest tenth.
42.
RADIO SIGNAL
The maximum distance
(in nautical miles) that a radio transmitter
signal can be sent is represented by the
—
√
expression 1.23
h , where h is the height
22,000 ft
x
(in feet) above the transmitter.
Estimate the maximum distance x
(in nautical miles) between the plane that
is receiving the signal and the transmitter.
Round your answer to the nearest tenth.
Not drawn to scale
314
Chapter 7
Real Numbers and the Pythagorean Theorem
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