4th Grade Triangles
4th Grade Angles
4th Grade Lines
4th Grade Shapes
Review Questions
100
What is a triangle with 3 acute angles called?
Acute triangle.
100
What type of angle is 90 degrees?
Right Angle
100
Describe parallel lines
Lines that never meet/ intersect
100
What type of angles are in the corners of a rectangle ALWAYS?
right angles
100
What is a line of symmetry?
A line that cuts a shape in half so that each side is a mirror of the other side.
200
What is a triangle with 1 right angle called?
Right Triangle
200
What type of angle is this angle?
Obtuse
200
Lines that intersect and form 90 degree angles
Perpendicular lines
200
A shape with at least 2 sides that have parallel lines
Parallelogram
200
Classify this triangle based on its sides and angles.
isosceles
300
What is this triangle called? 
Acute Triangle
300
What is the angle measurement of a straight line? (in degrees)
180o
300
Parallel lines cross at a 90 degree angle - True or False?
False
300
The characteristics of property of a shape
Attributes
300
How many lines of symmetry does a circle have?
Infinite
400
A triangle has at least _____ acute angles?
2
400
Name one angle that is NOT represented by the picture.
Answers Vary
Examples: ABC, RCB, CPB, DEP, QPE
400
Lines that form a straight path that continues in only one direction.
A ray
400
A quadrilateral with one pair of parallel sides
Trapezoid
400
What is the formula for area of a rectangle?
A= l x w
500
What type of triangle has two acute angles and one obtuse angle?
Obtuse Triangle
500
How many rays is an angle made up of?
2 rays
500
A straight path that extends in opposite directions forever.
Line
500
A parallelogram with four congruent sides and opposite angles that are congruent
Rhombus
500
What is the formula for perimeter of a rectangle?
P = (2xL) + (2xW)