4. Construct the bisectors of the three angles of a triangle. Repeat for several triangles. If your construction is cor- rect, these bisectors will pass through the same point.

1234567891011 match the reasons with the statements in the proof. given: j | | k m 1 = m 3 prove: l | | m 1. j||k, m∠3 = m∠1 if lines are ||, then corresponding angles are =. 2. m∠1 = m∠2 if alternate interior angles are =, then lines are ||. 3. m∠2 = m∠3 substitution 4. l||m given

Select the conic section that represents the equation. 3x2 + 3y2 -2x + 4 = 0

Find the arc length of the semicircle. 7the grade