Question

Need a answer quick please

Answer 1

Answer:

m∠1 = 45°

Step-by-step explanation:

We know that,

Sum of two interior angles of a triangle is equal to its exterior angle opposite to them.

Thus,

85° + m∠1 = 130°

m∠1 = 130° - 85°

m∠1 = 45°

OR

2nd interior angle + 130° = 180° [Linear Pair]

2nd interior angle = 180° - 130°

2nd interior angle = 50°

We know that,

By Angle Sum Property of a Triangle,

85° + 50° + m∠1 = 180°

135° + m∠1 = 180°

m∠1 = 180° - 135°

m∠1 = 45°

Hence,

m∠1 = 45°

Hope it helped and believing you understood it........All the best