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28 votes
28 votes
2. Write your two column proof

PLEASE IF YOU DONT KNOW DONT ANSWER PLEASE

2. Write your two column proof PLEASE IF YOU DONT KNOW DONT ANSWER PLEASE-example-1
User Stanislav Dontsov
by
2.8k points

1 Answer

27 votes
27 votes

We have:

ab = bc (hypothetical)

so the triangle ABC is isosceles at B

we have: bd is the height of the triangle ABC, so BD is perpendicular to AB

Consider the triangle ABD and the right triangle ACD have:

AB = BC (hypothesis)

BD is the common edge

So the triangle ABD = triangle ACD (hypotenuse - acute angle)

hence the angle ABD = angle ACD

User Yunus Aslam
by
3.7k points
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