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```Geometry B
Unit 6: Lessons 1-4
Quiz Review
Name
1) Any two triangles with the same angles are
by __________ postulate, so their sides
are
.
2) In order to solve a triangle, at least __________ parts must be known.
3) Which order of parts can never be solved? __________
4) The trigonometric functions are defined for the _______________ angles in a right triangle.
5) If sin32  0.5299... , then sin1  0.5299  _______________
6) If tan A 
5
, then sinB 
12
. (A diagram would help.)
7) The trig buttons on your calculator broke! Find an approximate value of sin20 using the
triangle.
20°
3.343
1.143
Using the 45-45-90 and 30-60-90 triangle relationships, find the exact value and approximate value for
each of the following. Round the approximate value to two decimal places.
8) x = __________ ≈ __________
y = __________ ≈ __________
9) m = __________ ≈ __________
n = __________ ≈ __________
10) x = __________ ≈ __________
y = __________ ≈ __________
11) x = __________ ≈ __________
y = __________ ≈ __________
Find the value of each of the following, rounding to six decimal places/
12) sin34 =
13) cos72 =
14) tan40 =
Find the value of each of the following, rounding to the nearest tenth of a degree.
3.140
15) sin1 .56789 =
16) cos1 .12345 =
17) tan1  6.66  =
Solve each triangle. If necessary, round the angles to one decimal place, and round the side lengths to
two decimal places. Write your answers on the answer blank. You must have work that supports each
B
18) m B =
BC =
AB =
A
76.5°
23.78 C
19) mD =
E
m E =
27.8
DE =
76.5°
23.78
20) Find the length of the springboard below. Round to the nearest tenth of an inch.
D
21.3
F
```
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