Answer:
m∠1 = 130°
Option 4 is correct
Step-by-step explanation:
Given that,
m∠P = 40°, PM ⊥ MO
In a right ΔPMO,
∠PMO = 90°, m∠P = 40°
∠1 is an exterior angle at vertex O
m∠1 = ∠PMO + m∠P (Exterior angle property triangle)
Exterior angle: Sum of two interior angles of a triangle is equal to opposite exterior angle.
m∠1 = 90° + 40°
m∠1 = 130°
Hence, The measure of m∠1 = 130°
