B. Prove the following using indirect proof.
1. If x = 3, then 3x + 5 ≠ 10.
2. If a triangle is an isosceles triangle ( 2 sides are equal), then the base angles
cannot measure 92 degrees.
3. Given: 3r - 5 ≠ 13
Prove: r ≠ 6
4. Given: x = 5
Prove : 2x + 4 ≠ 12
