Question

In figure ABC is an isosceles triangle with ab is equal to BC and angle abc is equal to 50 degree find the angle B and angle BEC

Answer 1

Answer:

△ABC is an isosceles triangle.

∴∠B=∠C=50

o

∠BAC=180−50−50=80

o

∠BAC=∠BDC=80

o

(angles on circle by the same chord on the same side)

∠BEC is supplementary angle of ∠BAC

∴∠BEC=180−∠BAC

=180−80=100

o

@ananya