1. BC is 1+3=4 (units)
2. AD is 3+5= 8 (units)
3. Draw the altitude CH from point C, as shown in the figure.
4. Then triangle CHD is a right triangle, with hypothenuse CD, and sides HD and CH.
5.



6. AB=CD=4.47 because the trapezoid is isosceles.
7. P= BC+AD+AB+CD=4+8+4.47+4.47=20.9 (units)
10) 46
11) 115
12) 23
13) 161
14) 92
15) 138
16) 0.368
17) 9
18) 765
19) 336
20) 122.1
21) 0.45
22) 52
23)$33.60
24) 1 hour 12 minutes
25) 95
26) 398.24
27) A)
Test Number Correct Score Total
Math 68 ( 80% ) 85
Science ( 63 ) 90% 70
B) Science
C) 48 Questions
The answer is 5,12,13 as when you plug these into the Pythagorean theorem :
5^2 + 12^2 = 13^2
25 + 144 = 169
13^2 = 169
Hope this helps :)