Perpendicular Bisectors

PERPENDICULAR

BISECTOR

Learning Targets:

◦ By the end of the lesson, I will be able to identify perpendicular bisectors and

concurrent lines.

◦ By the end of the lesson, I will be able to prove theorems and solve problems about

perpendicular bisectors of line segments.

◦ By the end of the lesson, I will be able to prove theorems and apply geometric

methods to solve design problems using the perpendicular bisectors of line segments.

Drag and Drop

An Isosceles Triangle has two equal angles and two equal sides. ​

Placeholder

​

Drag these tiles and drop them in the correct blank above

True

False

Drag and Drop

A triangle with equal angles is called a Scalene Triangle. ​

Placeholder

Drag these tiles and drop them in the correct blank above

True

False

Draw

Draw in what's missing on the figure to help explain the definition of a perpendicular bisector.

Learning Targets:
•By the end of the lesson, I will be able to identify
perpendicular bisectors and concurrent lines.

•By the end of the lesson, I will be able to prove
theorems and solve problems about perpendicular
bisectors of line segments.

•By the end of the lesson, I will be able to prove
theorems and apply geometric methods to solve
design problems using the perpendicular bisectors of
line segments.

Draw

Find RT.

Show the calculations in you book.

Draw

Label the point of concurrency in figure A.

Label the circumcenter in figure B.

Fill in the Blanks

According to the given theorem, which lines in the triangle are equal?

Fill in the Blanks

Find SV if S is the circumcenter of QPR, QR=7.79 and PS= 4.25. Round off to the nearest tenth.

Open Ended

Where should he place the fountain?

Show the calculations in your book.

Practice:

Blue Group:

Pg 7-10: Question 6, 9, 13 and 22

Green Group:

Pg 7-10: Question 4, 8, 12 and 14

Orange Group:

Pg 7-10: Question 2, 7, 11 and 13

Red Group:

Pg 7-10: Question 1, 6, 11 and 12

Open Ended

EXIT TICKET:

What did you struggle with this lesson?