Question

please tell me all third question​

Answer 1

Answer:

a)Angle BAC=60 degrees

Angle BCA=60 degrees

Sum of all angles of triangle is 180 degrees

Therefore,Ange ABC+ Angle BAC + Angle BCA=180 degrees

Angle ABC=180-(Ange BAC+Angle BCA)

                  =180-(60+60)

                  =180-120

Angle ABC=60degrees

b ) Triangle ABC-Equilateral Triangle[All sides equal]

    Triangle PQR-Isosceles Triangle [Two sides equal

    Triangle LMN-Equilateral Triangle[All sides equal]

c)Triangle LMN is Equilateral Triangle

All angles in Equilateral Triangle measure 60 degrees

Therefore Angle L =60 degrees

Answer 2

Answer:

a) 60°

b)traingle abc is equiletral traingle , traingle pqr is issoceles traingle , traingle lmn is equilateral traingle

c) 60°