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Duplicate of Unit 3 Review Flashcards | StudBud
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Duplicate of Unit 3 Review
Duplicate of Unit 3 Review
30 terms
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Answers
1
Find the missing side lengths of the triangle AND find the missing angle measure.
Side lengths= 3,4 Angle measure=37°
Side lengths= 3,5 Angle Measure= 47º
Side lengths= 3,4 Angle measure=27°
Side lengths= 4,6 Angle measure=37°
2
Find the missing length. the triangle is similar if ΔEFD~ΔVFW
12
85
72
16
3
Determine if the triangle is obtuse, acute, or right.
not a triangle
acute
right
obtuse
4
What is the scale factor
1.5
.5
5.7
no!!!!!!!!!!!!!!!!
5
Use inverse trig to find the measure of ∠ A.
56°
48°
42°
34°
6
A ramp has a height of 5.8 ft. and makes an 80
o
angle with the height of the ramp. What is the length of the ramp?
1.0 ft
5.9 ft
5.7 ft
33.4 ft
7
Use inverse trig to find the measure of ∠A.
73°
72°
18°
17°
8
Solve for x.
8.4
35
100.8
12
9
Dilations
A
C
B
D
10
Find the PERIMETER of the Triangle
31 in
84 in
168 in
56 in
11
Find the missing side.
2.9
30.3
72.3
8.5
12
Dilations preserve which properties?
Congruence only.
Neither
Congruence and Orientation
Orientation only.
13
Find the missing side using Pythagorean Theorem
164
4
6
18
14
What is the Pythagorean Theorem?
a+b=c
a2+b2=c2
π
15
Use the Pythagorean Inequalities to identify the triangle as acute, right, or obtuse.
obtuse
right
acute
16
After a dilation, the pre-image and image have the same perimeter
False
True
17
The diagonal of a tv screen is 37 in. The tv has a width of 32 in., find the height.
37 in
32 in
18.6 in
15 in
18
These two triangles are similar by:
SSS
ASA
AAA
AA
19
Which is the correct equation to solve for x?
None of these
152 + x2=212
152+212=x2
20
Sin 30
o
= ____
Sin 60o
Tan 30o
Cos 90o
Cos 60o
21
Similar Triangles...
This is madness
have congruent angles
have proportional sides
have congruent sidesd
22
If we are dilating with K = 4, then A'B'=4(AB)
False
True
23
The Pythagorean Theorem only works with a right triangle
True
False
24
What do dilations do?
change the shape of the pre-image
slide the pre-image
change the size of the pre-image
change the size and shape of the pre-image
25
What phrase to remember the trigonometry functions
SOH-CAH-TAO
SAH-COA-TOH
SOH-CAH-TOA
SCT-OHO-HHA
26
Use Pythagorean theorem to solve the problem!
11
13
17
4
27
What is the scale factor?
4
Don't know just cry 😭😭😭😭😭😭
2
3
28
What is the Formula of Sine?
Adjacent/Opposite
Opposite/Hypotenuse
None of them
Hypotenuse/Opposite
29
Use Pythagorean Theorem to find the perimeter
67.5 cm
40.8 cm
14.2 cm
46.2 cm
30
What is the measure of side AC? Use your trigonometry ratios and round to the nearest tenth.
44.7
19.7
38.3
26.8
