Examples with solutions for Parts of a Triangle: Determine the size of the given angles

Exercise #1

Find the size of the given angle.

12456

Video Solution

Answer

180

Exercise #2

Find the size of the angle α \alpha .

2x+30α=x+30

Video Solution

Answer

70

Exercise #3

Find the size of the angle α \alpha .

αααβ=65

Video Solution

Answer

65

Exercise #4

Find the size of the angle α \alpha .

β=2x+60α=x+86

Video Solution

Answer

112

Exercise #5

Find the size of the angle ACB ∢\text{ACB} .

βββCCCBBBAAAα=8575

Video Solution

Answer

20