Perpendicular means

to intersect

Perpendicular bisector is…

to cut through the middle of a line segment at 90 degrees

tools to find a perpendicular bisector

ruler and protractor, compass, triangle

an angle that is smaller than 90 degrees

acute angle

obtuse angle

an angle bigger than 90 degrees

word for “split in half”

bisector

Angle Bisector

a line (bisector) that cuts an angle into 2 equal pieces

What is half of 90 degrees?

45 degrees

For angle ABC, which letter is the angle/corner?

B

For angle XYZ which letter is the anlge?

Y

a four sided shape with opposite sides are parallel and equal in length

parallelogram

the formula for area of a parallelogram

base x height = area

units are always in what format?

cm

The area of a parallelogram that has a base of 2 and height of 6 is…

12cm²

The formula to get the area of a triangle is

(b x h) / 2

A triangle with a base of 3 and height of 4 has an area of…

6cm²

A triangle with a base of 12 and a height of 3 has an area of

18cm²