Question

Find the measure of each interior and exterior angle. The diagram is not to scale.

Answer 1

Yup, <4=115

Answer 2

90

Answer 3

How about <2 and <3

Answer 4

they equal 90 as well because it has to equal 180

Answer 5

If you know that a straight line must equal 180, how about <5 and <6?

Answer 6

They = 65

Answer 7

Yup.

Answer 8

Now what about 7, 8, and 9?

Answer 9

If all interior triangle angles add to 180, and you know <1 and <6, what is <8

Answer 10

22?

Answer 11

22? check again

Answer 12

25

Answer 13

Yup, and straight line must equal 180, so if you know <8, what is 9?

Answer 14

7 and 9 = 155

Answer 15

Yes! So in review:

<1, <2, & <3=90
<4=115
<5 & <6=65
<7 & <9=155
<8=25