1. EQ: Are points on a perpendicular bisector equidistant from the endpoints? Assessment: Students will write a summary to prove the question Warm up

2. Proving Points on a Perpendicular Bisector EQ: Are points on a perpendicular bisector equidistant from the endpoints? Assessment: Students will write a summary to prove the question

3. EQ: Are points on a perpendicular bisector equidistant from the endpoints? Assessment: Students will write a summary to prove the question Directions 1) Use a compass to bisect each of the segments below. 2) Pick a point on the perpendicular bisector and mark it (this can be any point you want). 3) Draw a segment to connect each endpoint to the point you picked on the perpendicular bisector (this means that you are drawing two different segments). 4) Use a ruler to measure the length of each segment that you just drew. 5)Label both segments with the measurement.

4. EQ: Are points on a perpendicular bisector equidistant from the endpoints? Assessment: Students will write a summary to prove the question Example shown: Arc Mark Step 1 Demonstrated

5. EQ: Are points on a perpendicular bisector equidistant from the endpoints? Assessment: Students will write a summary to prove the question Example shown: Step 2 Demonstrated Pick a point on the perpendicular bisector and mark it Step 2 Demonstrated Pick a point on the perpendicular bisector and mark it

6. EQ: Are points on a perpendicular bisector equidistant from the endpoints? Assessment: Students will write a summary to prove the question Example shown: Step 3 Demonstrated Draw a segment to connect each endpoint to the point you picked on the perpendicular bisector Step 3 Demonstrated Draw a segment to connect each endpoint to the point you picked on the perpendicular bisector

7. EQ: Are points on a perpendicular bisector equidistant from the endpoints? Assessment: Students will write a summary to prove the question Example shown: Step 4 Demonstrated Use a ruler to measure the length of each segment that you just drew. Step 4 Demonstrated Use a ruler to measure the length of each segment that you just drew.

8. EQ: Are points on a perpendicular bisector equidistant from the endpoints? Assessment: Students will write a summary to prove the question Example shown: Step 5 Demonstrated Use a ruler to measure the length of each segment that you just drew. Step 5 Demonstrated Use a ruler to measure the length of each segment that you just drew. 3.5 in

9. EQ: Are points on a perpendicular bisector equidistant from the endpoints? Assessment: Students will write a summary to prove the question Answer the following questions: 1) What do you notice about the lengths of the segments connecting your point to the endpoints? 2) Fill in the blanks: Points on a perpendicular bisector of a line segment are exactly those equidistant from the segment’s endpoints.

10. EQ: Are points on a perpendicular bisector equidistant from the endpoints? Assessment: Students will write a summary to prove the question Solve for x and y 3x + 10 6x-34 2y 12 If the sides of the triangle are equidistant, then that means they are equal to each other.

11. EQ: Are points on a perpendicular bisector equidistant from the endpoints? Assessment: Students will write a summary to prove the question Examine the Figure If JL = 16, KM = 4x – 1, and KM is a perpendicular bisector of JL determine which of the following values is/are correct. Select three that apply. A x = 3 B JK = 11 C KM = 15 D KL = 17 E perimeter of ΔKLM = 22 F perimeter of ΔJKL = 50

12. EQ: Are points on a perpendicular bisector equidistant from the endpoints? Assessment: Students will write a summary to prove the question Write your Summary All summaries MUST be at least 2-3 complete sentences. They should answer the essential question and summarize the notes

13. EQ: Are points on a perpendicular bisector equidistant from the endpoints? Assessment: Students will write a summary to prove the question Homework Practice 5.2 worksheet 2-20 evens.