Parallel Lines - Triangles
Question 1
∠A=40°, ∠B=65°. Find ∠C.
Question 2
A:(2x+10)
B: (3x)
C: (4x-10)
Find x.
Question 3
A: (x+20), B: (2x), C: 60°
Question 4
A: 3x B: (x+30) C: (2x)
Find x.
Question 5
Isosceles: ∠A=∠B, ∠C=50°. Find ∠A.
Question 6
A: (x+15), B: (x+25), C: (x+35)
Find x.
Question 7
2x+(5x-10)+50=180. Find x.
Question 8
A: 3x, B: 4x, C:5x
Find x.
Question 9
A: (x+10), B: (x+20), C: (2x+30)
Find x.
Question 10
Right triangle: A: (x+10), B: 90°, C: 2x
Find x.
Question 11
Given ∠T = 50°, find ∠STP
Question 12
If ∠T = 60° and ∠W = 70°, find ∠STP.
110°
140°
120°
130°
Question 13
If ∠S = (2x), ∠T = (x+20), ∠W = 60°, find x.
Question 14
Given ∠STP = 110° and ∠W = 50°, find ∠S.
Question 15
If ∠T = (3x), ∠W = (2x), ∠S = 50°, find x.
Question 16
If ∠S = 80° and ∠W = 40°, find ∠STP.
Question 17
If ∠STP = (4x), and ∠S = (2x), ∠W = (x), find x.
Question 18
If ∠S = (x+30), ∠W = (x+20), ∠T = 50°, find x.
Question 19
Given ∠STP = 140° and ∠S = 60°, find ∠W.
Question 20
If ∠B = 120°, find ∠A
Question 21
If ∠2 = 70°, ∠A = 30°, find ∠3
80°
Question 22
If ∠1 = (2x), ∠A = (x+20), find x
Question 23
Given: ∠2 = 120°, ∠3 = 30°; find ∠1
30°
50°
Question 24
If ∠3 = 80°, find ∠B
Question 25
If ∠1 = 40° and ∠2 = 60°, find ∠3.
Question 26
If ∠A = (3x), ∠1 = (2x+20), find x.
Question 27
If ∠A = 30°, ∠2 = (x+30), ∠3 = (2x), and triangle sum applies, find x.
Question 28
If ∠1 = 75° and ∠3 = 45, find ∠2 (linear pair).
60°
80°
100°
Question 29
If ∠A = 65°, find ∠1.
Question 30
If ∠A = 60°, ∠2 = 60°, find ∠B.
Question 31
If ∠A = 70°, find ∠C
Question 32
If ∠B = 120°, find ∠A (vertical angles).
Question 33
If ∠A = (2x), ∠B = (x+30), find x
Question 34
If ∠C = 80°, find ∠D
Question 35
If ∠B = 110°, find ∠D
Question 36
If ∠A = 65°, find ∠D
Question 37
If ∠C = (3x), ∠D = (2x-20), find x
40
Question 38
If ∠A = 50°, find ∠C
Question 39
If ∠B = (4x), ∠A = (2x+20), find x
Question 40
Given side a corresponds to side b, If side a = 4 and side e = 12, what is the scale factor (small → large)?
Question 41
Given BC corresponds to FG, and side b = 5 and side f = 15, what is the scale factor?
Question 42
Side a = 42, Side b = 60, ∠B = 40°, ∠C = 60°, ∠F = 80°, Side e = 78, Find the length of Side f.
78
60
42
Not Enough Information
Question 43
If scale factor = 3 and side b = 7, find side f.
Question 44
Given ∠C = ∠G and ∠A = ∠F; Which sides are corresponding sides?
Side a ~ Side b
Side a ~ Side f
Side b ~ Side e
Side b ~ Side f
Question 45
Given side a ~ side f and side b ~ side e, and that side b = 6 and side f = 18, and side a = 5, find side e.
Question 46
If side a = (x), side e = (3x) and side a ~ side b: what is the scale factor?
Question 47
If m = 4, y = 8, and x = 6, find n.
Question 48
If m = 3, y = 6, and n = 10, find x.
Question 49
If m = 5, y = 15, and x = 9, find n.
Question 50
If m = 2, y = 5, and n = 20, find x.
Question 51
If m = 6, y = 9, and x = 12, find n.
Question 52
If m = 7, y = 14, and n = 16, find x.
Question 53
If m = 4, y = 10, and x = 5, find n.
Question 54
If m = 3, y = 12, and n = 20, find x.
Question 55
If m = 8, y = 12, and x = 9, find n.
Question 56
If m = 5, y = 20, and n = 24, find x.
