Download Homework #2

Homework #2
Geometry R
Name:
1.
In right triangle BCD, BD = 12, mOC = 90, and mODBC = 47. Find DC to the
nearest tenth.
1.
2.
In right triangle ABC, mOC = 90, mOA = 55, and CA = 10. What is the length of
AB to the nearest integer?
2.
A.
6
B.
14
C.
17
D. 24
3.
In the accompanying diagram of right triangle ABC, a right angle is at C, AB = 26,
and mOA = 27. Find the length of BC to the nearest tenth.
3.
4.
In the accompanying diagram of right triangle RUN, mOU = 90, mON = 37, and
RN = 21.
4.
What is the length of RU, expressed to the nearest tenth?
A.
12.6
B.
15.8
C.
16.8
D. 34.9
page 1
5.
Which equation could be used to nd the measure of one acute angle in the right
triangle shown below?
A.
6.
4
5
B.
tan A =
5
4
C.
cos B =
5
4
D. tan B =
5
4
In the right triangle shown in the diagram below, what is the value of x to the
nearest whole number?
A.
7.
sin A =
12
B.
14
C.
21
sin A =
Geometry R
15
17
B.
tan A =
8
17
C.
6.
D. 28
Which equation shows a correct trigonometric ratio for angle A in the right triangle
below?
A.
5.
cos A =
15
17
page 2
D. tan A =
7.
15
8
Homework #2
8.
As shown in the diagram below, a ladder 5 feet long leans against a wall and
makes an angle of 65 with the ground. Find, to the nearest tenth of a foot, the
distance from the wall to the base of the ladder.
8.
9.
An 8-foot rope is tied from the top of a pole to a stake in the ground, as shown in
the diagram below.
9.
If the rope forms a 57 angle with the ground, what is the height of the pole, to
the nearest tenth of a foot?
A.
10.
4.4
B.
6.7
C.
9.5
D. 12.3
In ^ABC, mOC = 90. If AB = 5 and AC = 4, which statement is not true?
A.
cos A =
Geometry R
4
5
B.
tan A =
3
4
C.
sin B =
4
5
page 3
D. tan B =
10.
5
3
Homework #2
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Geometry R
1.
Answer:
8.8
2.
Answer:
C
3.
Answer:
11.8
4.
Answer:
A
5.
Answer:
A
6.
Answer:
C
7.
Answer:
C
8.
Answer:
2.1
9.
Answer:
B
10.
Answer:
D
Homework #2
07/21/2014