Question

LIU
In the triangle ABC, if AC = BC, LA = 750 ; find angle(B )and angle (C) .​

Answer 1

Answer:

Solution.

let the ∆C=x

∆A=750

∆A+∆C=180°

750+x=180

x=180-750

x=570

angle C=57

let angle B=y

angle A=750

angleC=570

∆A+∆C+∆B=180°

750+570+y=180

1320+y=180

y=180-1320

y=1140

∆B=1140

angleC=570°

angleB=1140°