Classifying Triangles by Side Length

What defines a quadrilateral?

• A shape with 3 sides

• A shape with 4 sides

• A shape with 4 right angles

• A shape with 2 pairs of parallel sides

What makes a square special among quadrilaterals?

• All sides are of different lengths

• All angles are less than 90 degrees

• Only one pair of sides is parallel

• All sides are of equal length and all angles are right angles

How does a rectangle differ from a square?

• A rectangle has 4 equal angles but not all sides are equal

• A rectangle has sides of equal length

• A rectangle has no parallel sides

• A rectangle has 3 right angles

What is a rhombus?

• A quadrilateral with all sides of different lengths

• A quadrilateral with only one pair of parallel sides

• A quadrilateral with 4 equal sides but not all angles are equal

• A quadrilateral with no right angles

What characteristic do all parallelograms share?

• All angles are equal

• No parallel sides

• All sides are equal

• Two pairs of parallel sides

What defines a trapezoid (or trapezium) in the context of quadrilaterals?

• A quadrilateral with one pair of parallel sides

• A quadrilateral with all sides of equal length

• A quadrilateral with all angles equal

• A quadrilateral with no parallel sides

What is the sum of the angles in any quadrilateral?

• 180 degrees

• 270 degrees

• 360 degrees

• 450 degrees

How can you find an unknown angle in a quadrilateral?

• Add the known angles and subtract from 360

• Add the known angles and subtract from 180

• Divide the known angles by 2

• Multiply the known angles by 2

In a parallelogram, how are opposite angles related?

• They are not related

• They are equal

• They are supplementary

• They are complementary

How do you calculate the unknown angle 'A' in a parallelogram if one angle is given?

• Subtract the given angle from 180

• Use the given angle to find the opposite angle, then calculate the remaining angles

• Calculate the sum of the other two angles and divide by 2

• Subtract the given angle from 360