Question

angle a+ angle b =17....angle b+ angle c=25.....angle c+ angle a=18.fimd each angle​

Answer 1

angle A + angle B =17

angle B = 17- angle A ( equation 1)

angle C + angleA = 18

angle C= 18- angle A ( equation 2)

B + C = 25

therefore from 1and 2

17-angle A + 18- angle A=25

35-2(angle A)=25

-2(angle A)=25-35

-2( angle A) = -10

2(angle A) = 10

angle a = 5

since u hv got the value of a u can put it in equation 1 and 2 and get b and c