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MATH1720HomeworkChapter7Section3

Multiple Choice
Identify the choice that best completes the statement or answers the question.
 

 1. 

Find the indicated angle or side. Give an exact answer.
Find the exact length of side a.

mc001-1.jpg
a.
4
c.
2mc001-3.jpg
b.
2mc001-2.jpg
d.
4mc001-4.jpg
 

 2. 

Find the indicated angle or side. Give an exact answer.
Find the exact length of side a.
mc002-1.jpg
a.
mc002-2.jpg
c.
mc002-3.jpg
b.
1
d.
mc002-4.jpg
 

 3. 

Find the indicated angle or side. Give an exact answer.
Find the exact length of side a.
mc003-1.jpg
a.
9
c.
mc003-2.jpg
b.
7
d.
mc003-3.jpg
 

 4. 

Find the indicated angle or side. Give an exact answer.
Find the measure of angle A in degrees.
mc004-1.jpg
a.
60°
c.
120°
b.
45°
d.
30°
 

 5. 

Find the indicated angle or side. Give an exact answer.
Find the measure of angle A in degrees.
mc005-1.jpg
a.
45°
c.
75°
b.
30°
d.
60°
 

 6. 

Find the indicated angle or side. Give an exact answer.
Find the measure of angle A in degrees.

mc006-1.jpg
a.
60°
c.
135°
b.
140°
d.
120°
 

 7. 

Find the missing parts of the triangle. Round to the nearest tenth when necessary or to the nearest minute as appropriate.
C =  112.9°
a =  8.4 km
b =  11.3 km
a.
c =  22.3 km, A =  26°, B =  41.1°
c.
c =  16.5 km, A =  28°, B =  39.1°
b.
No triangle satisfies the given conditions.
d.
c =  19.4 km, A =  30°, B =  37.1°
 

 8. 

Find the missing parts of the triangle. Round to the nearest tenth when necessary or to the nearest minute as appropriate.
B = 63°30'
a = 12.2 ft
c = 7.8 ft
a.
b = 11.2 ft, A = 77°49', C = 38°41'
c.
No triangle satisfies the given conditions.
b.
b = 13.2 ft, A = 73°07', C = 37°23'
d.
b = 12.2 ft, A = 75°07', C = 41°23'
 

 9. 

Find the missing parts of the triangle. Round to the nearest tenth when necessary or to the nearest minute as appropriate.
C =  113.6°
a =  7.5 m
b =  9.6 m
a.
No triangle satisfies the given conditions.
c.
c =  20.2 m, A =  26.4°, B =  40°
b.
c =  17.3 m, A =  30.4°, B =  36°
d.
c =  14.4 m, A =  28.4°, B =  38°
 

 10. 

Find the missing parts of the triangle. Round to the nearest tenth when necessary or to the nearest minute as appropriate.
a =  6.3 in.
b =  13.6 in.
c =  15.3 in.
a.
A =  26.3°, B =  60.6°, C =  93.1°
c.
No triangle satisfies the given conditions.
b.
A =  22.3°, B =  62.6°, C =  95.1°
d.
A =  24.3°, B =  62.6°, C =  93.1°
 

 11. 

Find the missing parts of the triangle. Round to the nearest tenth when necessary or to the nearest minute as appropriate.
a =  26 ft
b =  39 ft
c =  40 ft
a.
A =  38.4°, B =  34.4°, C =  107.2°
c.
No triangle satisfies the given conditions.
b.
A =  68.7°, B =  38.4°, C =  72.9°
d.
A =  38.4°, B =  68.7°, C =  72.9°
 

 12. 

Find the missing parts of the triangle. Round to the nearest tenth when necessary or to the nearest minute as appropriate.
AB =  321 yd
AC =  188 yd
BC =  161 yd
a.
A =  25.1°, B =  21.3°, C =  133.6°
c.
No triangle satisfies the given conditions.
b.
A =  21.3°, B =  12.6°, C =  146.1°
d.
A =  21.3°, B =  25.1°, C =  133.6°
 

 13. 

Find the area of triangle ABC with the given parts. Round to the nearest tenth when necessary.
a =  13.6 cm
b =  18.4 cm
c =  15.3 cm
a.
102 cm2
c.
111 cm2
b.
108 cm2
d.
105 cm2
 

 14. 

Find the area of triangle ABC with the given parts. Round to the nearest tenth when necessary.
a =  153 m
b =  161 m
c =  171 m
a.
14,058 mc014-1.jpg
c.
722 mc014-3.jpg
b.
16,869 mc014-2.jpg
d.
11,246 mc014-4.jpg
 

 15. 

Find the area of triangle ABC with the given parts. Round to the nearest tenth when necessary.
a =  46 ft
b =  54 ft
c =  62 ft
a.
1508 mc015-1.jpg
c.
1206 mc015-3.jpg
b.
134 mc015-2.jpg
d.
1809 mc015-4.jpg
 

 16. 

Two ships leave a harbor together traveling on courses that have an angle of  129° between them.  If they each travel  505 miles, how far apart are they (to the nearest mile)?
a.
912 mi
c.
435 mi
b.
1824 mi
d.
41 mi
 

 17. 

Two airplanes leave an airport at the same time, one going northwest (bearing 135°) at  414 mph and the other going east at  343 mph.  How far apart are the planes after  4 hours (to the nearest mile)?
a.
2197 mi
c.
2800 mi
b.
700 mi
d.
2330 mi
 

 18. 

Find the area of a triangular garden if the sides are approximately  7 feet,  8 feet, and  14 feet (to the nearest square foot).
a.
19 mc018-1.jpg
c.
392 mc018-3.jpg
b.
447 mc018-2.jpg
d.
5 mc018-4.jpg
 

 19. 

Tia is going to stain her triangular concrete patio. The patio is approximately  10 feet by  17 feet by  13 feet. If one can of stain covers  17 mc019-1.jpg, how many cans of stain will she need?
a.
65 cans
c.
4 cans
b.
1 cans
d.
51 cans
 

 20. 

A  painter needs to cover a triangular region  61 meters by  69 meters by  72 meters.  A can of paint covers 70 square meters.  How many cans will be needed?
a.
28 cans
c.
318 cans
b.
14 cans
d.
3 cans
 

 21. 

A stained glass window is composed of 20 triangular sections, each with sides  4,  7, and  7 in.  Find the total area of the window (to the nearest square inch).
a.
268 mc021-1.jpg
c.
3461 mc021-3.jpg
b.
89 mc021-2.jpg
d.
13 mc021-4.jpg
 



 
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