Question

Find the m
A)50 degrees
B)60 degrees
C)70 degrees
D)80degrees

Answer 1

70

Explanation:

65 and 45 make up 110, and triangles are composed up 180°. The missing angle thatll make it add up to 180 is 70

Answer 2

Explanation:

∠DEC + ∠EDC + ∠ECD = 180 {angle sum property of triangle}

45 + 65 + ∠ECD = 180

110 +∠ECD = 180

∠ECD = 180 - 110

∠ECD = 70°

AB // CD and AE transversal

∠BAC = ∠ECD {Corresponding angles are equal}

∠BAC = 70°