True or False
T/F All quadrilaterals have four sides and four angles.
true
These quadrilaterals have 2 sets of parallel sides.
What is a parallelogram?
A figure that has one pair of parallel lines, two right angles, and four sides.
What is a right trapezoid?
The number of acute angles in an obtuse triangle.
What is 2?
T/F All rectangles are squares.
false
These quadrilaterals have one pair of parallel sides.
What are trapezoids?
This geometric figure can be thought of as a yardstick, a length of wood that has a starting point at 0 and an endpoint at 36 inches.
What is a line segment?
A triangle with 2 equal sides.
What is isosceles?
T/F All squares are rombuses
These quadrilaterals have all equal (congruent) sides.
squares and rhombuses
Lines that intersect at a 900 angle.
What are perpendicular lines?
A triangle with no equal sides.
What is scalene?
T/F Rhombuses are parallelograms.
true
These quadrilaterals have all right angles.
squares and rectangles
A triangle with all equal sides and angles.
What is an equilateral triangle?
A triangle with three acute angles.
What is an acute triangle?
T/F A triangle has 3 angles that total 360o.
false
A figure that has one pair of parallel lines, two right angles, and four sides.
What is a right trapezoid?
A pair of lines that never intersect.
What is parallel?
A triangle with a right angle.
What is a right triangle?