Question

Please help me with the angles. I don't quite understand what the answer is.

Answer 1

m<11 = 100 m <12 = 80

Explanation:

m <5 = 100°

m <5 = m <11 ( alternate exterior angles)

•°• m <11 = 100

<11 & <12 are supplementary

•°•m <11 + m <12 = 180

= m <100+m <12 = 180

= m <12 = 180- 100

80°