Angle & Measurement
What is an angle that measures less than 90 degrees called?
Acute angle
What do we call a dot that shows a location?
Point
What is a polygon?
A closed shape with straight sides
What is a triangle with all different side lengths called?
Scalene triangle
What is area?
DOUBLE POINTS: WHAT IS THE EQUATION USED TO FIND AREA?
The space inside a shape
DOUBLE JEOPARDY: area = l x w
What is an angle that measures more than 90 degrees but less than 180 degrees called?
Obtuse angle
What is a straight path that goes on forever in both directions?
Line
What does it mean for sides to be perpendicular?
They intersect to form a right angle (90 degrees)
What is a triangle with two equal sides called?
Isosceles triangle
What is perimeter?
DOUBLE JEOPARDY: WHAT IS THE EQUATION USED TO FIND PERIMETER?
The distance around a shape
DOUBLE JEOPARDY: perimeter= l + w + l + w
What tool do you use to measure angles?
Protractor
What is a part of a line with two endpoints?
Line segment
What is a line of symmetry?
A line that divides a shape into two equal halves
What is a triangle with one 90 degrees angle called?
Right triangle
30 square inches
If an angle measures 150 degrees, is it acute, right, or obtuse?
Obtuse
What is a line with one endpoint that goes on forever in one direction?
Ray
Name a shape that has 2 pairs of parallel sides
Parallelogram (rectangle/square)
What is an obtuse triangle?
A triangle with one angle greater than 90 degrees.
A rectangle is 35 inches by 6 inches. What is the perimeter?
82 inches
A straight angle is 180 degrees. If one part is 45 degrees, what is the other angle?
135 degrees
What does it mean if two lines are parallel?
They never meet and stay the same distance apart
Can a triangle have a line of symmetry? Give an example.
Yes- isosceles triangle
Can a right triangle also be isosceles? Explain
Yes, it can have one right angle and two equal sides.
A sprinkler turns 10 degrees every second. How many degrees does it turn in 9 seconds?
90 degrees