Title: triangle proofs
Course: quiz duplicate error

Write a two-column proof.

If [Image] and [Image], then [Image].
[Image]

Write a two-column proof.

If [Image] is a median of isosceles [Image], then [Image].
[Image]

Write a two-column proof.

If [Image] is a median and a perpendicular bisector of [Image], then [Image].
[Image]

Write a two-column proof.

Given: [Image]
Prove: [Image]
[Image]

Write a two-column proof.

Given: [Image], [Image] bisects [Image]
Prove: [Image]
[Image]

Write a two-column proof.

Given: [Image], [Image]
Prove: [Image]
[Image]

Write an indirect proof.

Given: [Image]
Prove: [Image]

Write an indirect proof.

Given: [Image]
Prove: [Image] is positive

Write an indirect proof.

If [Image] and [Image], then [Image].

Write an indirect proof.

If n is a multiple of 9 then it is a multiple of 3.

Write an indirect proof.

If [Image] then [Image].

Write an indirect proof.

If [Image] is an integer, then n is even.

Write an indirect proof.

Given: [Image] is an even number
Prove: n is an even number

Write an indirect proof.

Given: [Image], [Image]
Prove: [Image]
[Image]

Write an indirect proof.

Given: [Image]
Prove: [Image]
[Image] [Image]

Write an indirect proof.

Given: A is the midpoint of BF and CD.
Prove: [Image]
[Image]

Write an indirect proof.

Given: [Image] is a perpendicular bisector of equilateral triangle [Image].
Prove: [Image]
[Image]

Write an indirect proof.

Given: [Image] is a perpendicular bisector of equilateral triangle [Image]. [Image] is a median of [Image].
Prove: [Image]
[Image]

Write an indirect proof.

Given: Square GHJK
Prove: [Image]
[Image]

Write an indirect proof.

Given: [Image] with angle measures as shown.
Prove: [Image]
[Image]

Write an indirect proof.

Given: [Image] is a perpendicular bisector of [Image].
Prove: [Image] is isosceles
[Image]

Write an indirect proof.

Given: [Image].
Prove: [Image]
[Image] [Image]