Angles
Name the three types of angles.
acute, right, and obtuse.
How many sides does a triangle have?
3
If one angle of a triangle is 50° and another is 60°, what is the third angle?
70 degrees
A shape with 5 sides is called a
Pentagon
How many degrees are in an acute angle? Obtuse? Right?
Less than 90
More than 90
Exactly 90
Name the 3 different types of triangles
Scalene, Isosceles, and Equilateral
A square has four angles. What is the measure of each angle?
90 degrees
A clock showing 3:00 forms a
right angle (90 degrees).
What do we call two lines that never meet?
Parallel lines
What is the total degrees of a triangle?
180 degrees
A shape with four sides and opposite sides equal could be a...
Rectangle or parallelogram
An angle of 120° is an
Obtuse angle
What tool do we use to measure angles?
A protractor
A hexagon has how many sides?
6
A triangle with all sides equal is called an...
Equilateral triangle
What is a full rotation in degrees?
360 degrees
If a scalene triangle has an angle of 75 and 64 what is the degree of the 3rd angle?
41 degrees
A four-sided shape is called a
Quadrilateral
What do we call two angles that add up to 90 degrees?
Complementary angles.
John draws a quadrilateral with only one pair of parallel sides. What shape did he draw?
A trapezoid.