Lines/Line Segments
A straight line that continues in each direction with no endpoints
Line
An angle that measures 90°
Right angle
What is the perimeter of a triangle with side lengths of 15 inches, 12 inches, and 16 inches?
43 inches
A polygon with four sides
Quadrilateral
A polygon with three sides
Triangle
Part of a straight line that begins and ends at two specific points
Line segment
An angle measure less than 90°
Acute angle
What is the area of a rectangle with side lengths of 9 inches and 17 inches?
153 inches2
A quadrilateral with at least one pair of parallel sides
Trapezoid
A triangle with three sides of equal length
Equilateral triangle
A part of a straight line that continues in one direction and has one endpoint
Ray
An angle measure greater than 90°
Obtuse angle
What is the perimeter of a rectangle with side lengths of 289 cm and 432 cm?
1,442 cm
A quadrilateral with two pairs of parallel sides
Parallelogram
A triangle with two sides of equal length
Isosceles triangle
Two lines that are always an equal distance apart
Parallel lines
What type of angle is an angle that measures 138°?
Obtuse angle
What is the area of a rectangle with side lengths of 87 ft and 4 ft?
348 ft2
A parallelogram with four sides of equal length
Rhombus
A triangle with three sides of different lengths
Scalene triangle
Two lines that intersect at a 90° angle
Perpendicular lines
I am an angle that measures 98° less than 174°. What type of angle am I and how many degrees am I?
Acute angle; 76°
Find the perimeter and area of a square with side lengths of 13 in
Perimeter: 52 in
Area: 169 in2
A parallelogram with four right angles
Rectangle
A triangle with one right angle
Right triangle