Question

in triangle abc ab = ac and angle a : angle c = 4:3 find angle c​

Answer 1

Answer:

Given. Angle C= angle A.

So AB=BC( opposite sides equal to equal Opposite angles..)

Given AC-AB=3Cm.

And Perimeter =15cm.

Now Perimeter=AC+AB+BC.

→15=AC+BC+AB.

→15=AC+BC+(AC-3) [Since AC-AB=3→AC=3+AB→AB=AC-3]

→15=AC+AB+AC-3(AB=BC)

→15+3=2AC+(AC-3)

→18+3=3AC

→21=3AC

→AC=21/3

→AC=7Cm

Hope It helps

Step-by-step explanation: