Chapter 3 Unit Flashcards
(17 cards)
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
