Triangles
Triangles 2
Quadrilaterals
Quadrilaterals 2
Mixed
100

When classifying Triangles by their SIDES, what are the 3 types of triangles?

Scalene, Isosceles, and Equilateral

100

When classifying triangles by their ANGLES, what are the 3 types of triangles?

Acute triangle, Obtuse triangle, and Right triangle

100

I am a quadrilateral with 4 angles that are equal to 90 degrees. Which two shapes can I be?

Rectangle and Square

100

A quadrilateral with four congruent sides and four 90 degree angles. What am I?

Square

100

A triangle with sides that are:

45cm, 73cm, and 55cm

One angle is greater than 90 degrees

What type of triangle am I?

Obtuse Scalene

200

What is an isosceles triangle?

Triangle with at least 2 congruent sides.

200

What is an equilateral triangle?

A triangle with all 3 congruent sides

200

I am a quadrilateral with at least one set of parallel sides. What am I?

trapezoid

200

True or False: (explain why)

All parallelograms are quadrilaterals

True. Quadrilaterals have to have 4 sides, all parallelograms have 4 sides.

200
True or False: (Explain why)


All squares are parallelograms

True.

Parallelograms only need 2 sets of parallel sides, squares will always have 2 sets of parallel sides.

300

What is a scalene triangle?

triangle with no congruent sides
300

If a triangle has angles that are: 

126o, 11o, and 43o

How can we classify it?

Obtuse triangle

300

True or False: (explain why)

All parallelograms are rhombuses

False. All rhombuses are parallelograms, but some parallelograms can be rhombuses.

300

True or False: (explain why)

All rectangles are squares

False. 

Some rectangles CAN be squares, but not all. Rectangles don't have to have all 4 congruent sides.

300

A triangle with sides that are:

16cm, 16cm, and 16cm

What type of triangle am I?

Equilateral Triangle

400

A triangle has sides that are:

24cm, 84cm, and 20cm

What type of triangle is this? Why?

Scalene triangle because it has no congruent sides

400

Explain the difference between acute, obtuse, and right triangles.

Acute - all angles are less than 90 degrees

Obtuse - at least one angle is greater than 90 degrees

Right - at least one angle is EQUAL to 90 degrees

400

I am the quadrilateral that can have NO sets of parallel sides. What shape am I?

Kite

400

A quadrilateral with 4 congruent sides but no 90 degree angles. What am I?

Rhombus

400

A triangle with sides that are:

8cm, 17cm, and 15cm

One angle is 90 degrees

What type of triangle am I?

Right Scalene Triangle

500

Is this possible or impossible? Explain why.

A triangle with the angles:

148o, 11o, and 15o

Impossible, because the sum of all angles in a triangle have to equal 180o

500

A triangle has sides that are:

14in, 25in, 14in

The angles are all less than 90 degrees.

What type of triangle am I?

Acute Isosceles Triangle

500

Name all of the ways this shape can be classified

Quadrilateral, Trapezoid

500

What are all the ways this figure can be classified?

Quadrilateral, Parallelogram, Rhombus, Kite

(trapezoid is acceptable)

500

True or False: (explain why)

All quadrilaterals are parallelograms

False.

Quadrilaterals only have to have 4 sides. Parallelograms must have 2 sets of parallel sides. Some quadrilaterals can be parallelograms.