Question

In a the figure find the measurement of all angles of ∆ABC ​

Answer 1

good morning

given...

A =1,B =2,C =3

• Value of A
A+110 =180(Linear pair)
A = 180 - 110
=>A = 70

• Value of C
C+140 = 180(Linear pair)
C = 180-140
=> C = 40

•Value of B
A + B + C = 180 (Angle sum property )

here..
A =70,B =?,C= 40
But

as..
A+B+C=180
70 + 40 + B = 180
110 + B = 180
B= 180 - 110
=> B= 70

Hope it helps you

tHäNk yøú

Answer 2

Answer:

A) 110° + 1 = 180° 1 = 180°-110° 1=70°

C) 140° + 3 = 180° 3=180°-140° 3=40°

1+2+3=180°

70°+2+40°=180°

2=180°-110°

2=70°

Step-by-step explanation: