Question

In triangle abc ab is equal to ac and angle a is equal 100 degree angle b is equal to

Answer 1

Step-by-step explanation:

In triangle ABC,AB=AC

So angle B=angle C(angle opposite to equal sides are equal)

Then A+B+C=180*(angle sum property)

If A=100*

100+B+C=180*

B+B=180-100(though B=C)

=80*

2B=80*

=80 divided by 2

=40*