TCAP Success Grade 8 MATH Chapter 13

1 pt

5.

Which of the following is the correct equation using the Pythagorean theorem?

$m\overline{)AB}=40m\overline{)BC}=8m\overline{)AC}=39.2\phantom{\rule{0ex}{0ex}}$

A

${40}^{2}+{8}^{2}=39.{2}^{2}\phantom{\rule{0ex}{0ex}}$

B

${8}^{2}+39.{2}^{2}={40}^{2}\phantom{\rule{0ex}{0ex}}$

C

$39.{2}^{2}-{8}^{2}={40}^{2}\phantom{\rule{0ex}{0ex}}$

D

${40}^{2}+39.{2}^{2}={8}^{2}\phantom{\rule{0ex}{0ex}}$

1 pt

8.

A local hardware store sells door stops that are 2 inches high and 4.5 inches long. What is the diagonal length of the door stop?

A

4.9 inches

B

49 inches

C

24.25 inches

D

6.5 inches

1 pt

11.

What is the approximate perimeter of the triangle?

A

10 units

B

14 units

C

106 units

D

26 units

1 pt

12.

What is the length of AC?

A

8

B

12

C

16

D

20

1 pt

15.

What is the measure of ∠y?

A

93 $\u25e6\phantom{\rule{0ex}{0ex}}$

B

87 $\u25e6\phantom{\rule{0ex}{0ex}}$

C

37 $\u25e6\phantom{\rule{0ex}{0ex}}$

D

Cannot be determined