A
The shape that has the greatest number of lines of symmetry is
Circle
A traffic sign shows an equilateral triangle. If each angle is equal, what is the measure of each angle?
60 degree
The little box in the corner of a triangle or any figure represents what?
A right angle
How many lines of symmetry does an equilateral triangle have?
3 lines of symmetry
Two lines that meet at exactly 90° are called ___
Perpendicular lines
The angle between the hands of a clock at 6 o’clock is ___°.
Straight angle
A triangle has sides 5 cm, 4 cm, and 8 cm. What type of triangle is it?
scalene triangles
A tent is made in the shape of an isosceles triangle. If the top angle is 40°, what are the other two equal angles?
70 degrees
What is the missing angle of a triangle with a 20 degree angle and a 40 degree angle?
120 degrees
Two lines in the same plane that never meet are called ___.
Parallel lines
A ladder leaning against a wall makes an angle of 75° with the ground. What type of angle is it?
Acute angle
A pizza slice has two equal sides. What type of triangle is it?
Isosceles triangle
Name the 3 types of triangle based on their angles
Acute, Right, and Obtuse angle triangle
A full rotation of a ceiling fan is ___°
Whole angle
How many lines can pass through one point?
Infinite
In a triangle, if two angles add up to 90°, what is the measurement of the third angle?
90°
Triangles that have three angles less than 90 degrees
acute triangles
Can a triangle have these angle measures? 30, 60, 90.
Yes, they add up to 180.
Can you have a triangle that has 60, 70, and 80-degree angles?
No
A triangle can have two obtuse angles. True/False
False
The sum of angles in a triangle is always ___°.
180°
Triangles that have one angle greater than 90 degrees
obtuse triangles
If a swing moves forward by 100° and backward by 260°, which movement creates a reflex angle?
260°
What type of triangle has a 140 degree angle and two 20 degree angles?
Obtuse isosceles
A reflex angle is always larger than a ___ angle.
Straight angle
What are the 3 types of triangles based on their sides?
Equilateral, Isosceles, and Scalene
If a triangle has one angle = 90°, what is it called?
Right triangle
A butterfly lands on your desk. How many lines of symmetry does its body usually show?
1 line of symmetry
How many lines of symmetry does the digit “8” have?
The hands of a clock at 9:30 make an angle of ___°.
Reflex angle