Shapes & Names
A shape with 3 sides
What is a triangle?
An angle less than 90°
What is an acute angle?
A line that never ends
What is a line?
Distance around a shape
What is perimeter?
How many days in a week
What is 7?
A shape with 4 equal sides
What is a square?
An angle equal to 90°
What is a right angle?
A line with two endpoints
What is a line segment?
Distance across a circle
What is diameter?
How many minutes in an hour
What is 60?
A shape with 5 sides
What is a pentagon?
An angle greater than 90°
What is an obtuse angle?
Lines that never meet
What are parallel lines?
Measure of a flat surface
What is area?
How many sides on a stop sign
What is 8?
A shape with no sides
What is a circle?
Two angles that add to 90°
What are complementary angles?
Lines that cross at 90°
What are perpendicular lines?
Tool used to measure angles
What is a protractor?
How many degrees in a full circle
What is 360?
A 4-sided shape with only one pair of parallel sides
What is a trapezoid?
Two angles that add to 180°
What are supplementary angles?
Lines in the same plane that never meet
What are parallel lines?
Formula for perimeter of a rectangle
What is 2L+2W?
How many letters in the alphabet
What is 26?