WorksheetsUnit 7 Review Geometry (1st Period)
Total questions: 25
Worksheet time: 13mins
Name
Class
Date
1.
Which triangle correctly shows a "standard" 45-45-90 triangle as you learned in your notes?
a)
Top Left
b)
Top Right
c)
Bottom Left
d)
Bottom Right
2.
Which triangle correctly shows a 30-60-90 triangle as you learned in your notes?
a)
1
b)
2
c)
3
d)
4
3.
Without using a calculator, what is the sin(45°)?
a)
1/√2
b)
1
c)
1/2
d)
√3
4.
Without using a calculator, what is the cos(45°)?
a)
1/√2
b)
1
c)
1/2
d)
√3
5.
Without using a calculator, what is the tan(45°)?
a)
1/√2
b)
1
c)
1/2
d)
√3
6.
Without using a calculator, what is the sin(30°)?
a)
1/√2
b)
1
c)
1/2
d)
√3
7.
Without using a calculator, what is the cos(30°)?
a)
1
b)
1/√3
c)
1/2
d)
√3/2
8.
Without using a calculator, what is the tan(30°)?
a)
1
b)
1/√3
c)
1/2
d)
√3/2
9.
Use a trig ratio to find c in right-triangle ABC, where m∠A = 30°, and b = 11/2. Draw and label the triangle to solve. (Do not use a calculator.)
a)
11/√3
b)
11/4
c)
11
d)
√3/11
10.
Use a trig ratio to find x.
a)
13.8568
b)
4.6187
c)
4
d)
6.9282
11.
Use a trig ratio to find x.
a)
25.4042
b)
19.052
c)
11
d)
38.1051
12.
Use a trig ratio to find x.
a)
14
b)
3.5
c)
8.0829
d)
12.1244
13.
Use a trig ratio to find x.
a)
7.7781
b)
15.5565
c)
11
d)
7
14.
Use a trig ratio to find x.
a)
8.4854
b)
4.2426
c)
6
d)
10.3923
15.
Use a trig ratio to find CB.
a)
2.5981
b)
0.8660
c)
.75
d)
1.299
16.
Use a trig ratio to find x.
a)
30.31
b)
40.4145
c)
17.5
d)
20.2073
17.
Use a trig ratio to find x. (Do not use a calculator on this problem.)
Hint: Use your notes to get the necessary trig ratio.
Hint: Use your notes to get the necessary trig ratio.
a)
28
b)
7
c)
19.7990
d)
24.2487
18.
If the lengths of three sides of a triangle are 20, 35, & 40, determine if a triangle can be formed. Then determine if the triangle is right, acute, or obtuse.
a)
Triangle is not possible
b)
Yes; Acute
c)
Yes; Obtuse
d)
Yes; Right
19.
Find x.
a)
8.3162
b)
13.1469
c)
3.8
d)
69.16
20.
Find x.
a)
6.4031
b)
41
c)
3
d)
7.8102
21.
If the lengths of three sides of a triangle are 50, 25, & 30, determine if a triangle can be formed. Then determine if the triangle is right, acute, or obtuse.
a)
Triangle isn't possible
b)
Yes; Acute
c)
Yes; Obtuse
d)
Yes; Right
22.
Use a trig ratio to find x.
a)
3.5419
b)
6.2367
c)
3.7536
d)
2.8285
23.
Use a trig ratio to find x.
a)
3.7534
b)
3.5419
c)
5.8853
d)
2.8285
24.
Determine if 9, 40, and 41 constitute a Pythagorean triple.
a)
Yes
b)
No
25.
Determine if 24, 45, 51 could be the sides of a right triangle.
a)
Yes
b)
No
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