Been helping out my brother with this college-prep geometry packet. Actually his last packet in this home schooling he's done to get his scholarship while he's had to work this past year or so. But anyway, Im just looking for help on 2 problems real quick if you can.
First,
Given : In Triangle ABC, angle B = 120 degrees
Prove: Angle A =(with a slash like "/" through it) 60 degrees
Plan: Use an indirect proof
NOTE: Write the proof using the paragraph method.
And Second.
Prove that the tangents to a circle at the endpoints of a diameter are parallel. State what is given, what is to be proved, and your plan of proof. Then write a two-column proof.
HINT: It will help if you draw a diagram with the points labeled.
Given:
Prove:
Plan:
Oh, and much much thanks in advance to whoever helps. Out of about 10 exams each containing 30-50 problems these were some painstaking to be stuck on and eventually skip.
First,
Given : In Triangle ABC, angle B = 120 degrees
Prove: Angle A =(with a slash like "/" through it) 60 degrees
Plan: Use an indirect proof
NOTE: Write the proof using the paragraph method.
And Second.
Prove that the tangents to a circle at the endpoints of a diameter are parallel. State what is given, what is to be proved, and your plan of proof. Then write a two-column proof.
HINT: It will help if you draw a diagram with the points labeled.
Given:
Prove:
Plan:
Oh, and much much thanks in advance to whoever helps. Out of about 10 exams each containing 30-50 problems these were some painstaking to be stuck on and eventually skip.