Question

please answer this question​

Answer 1

Step-by-step explanation:

angle A = 180-70-20 = 90°

given,AN is the bisector of angle A

so Angle NAC = anglaA/2 = 90/2 = 45°

angle MAC = 180-90-20 = 70°

angle MAN = angle MAC - angle NAC

70° - 45° = 25° Answer

Answer 2

Answer:

In triangle ABC,

BAC = 180° - 70 - 20 = 90°

BAN = NAC = 45° [ Angle Bisectors]

In triangle BAN,

70° + 45° + ANB = 180°

ANB = 180°- 115° = 65°

In triangle MAN,

MAN + 90° + 65° = 180°

MAN = 180° - 155° = 25°

Angle MAN = 25°