Angles
Classifying Triangles by sides
Classifying Triangles by angles
Classifying Quadrilaterals
Quadrilateral Word problems
100

Which angle measures at 90 degrees?

Right Angle 

100

A triangle with 3 congruent sides 

Equilateral

100

A triangle has a square in the bottom left of it. This shows me that that angle is 90 degrees. What kind of triangle could this be classified as?

Right Triangle

100

I am a polygon with 4 sides and 4 angles. What could you classify me as? 

Quadrilateral

100

Jim said that in order to be a rhombus you must have 4 equal sides and 2 sets of parallel sides. Bonnie said that a rhombus needed to have 4 equal sides, 2 sets of parallel sides, and 4 right angles.

Jim

200

Which type of angle is shown in the photo?


Acute Angle

200

A road map has a grassy area in the shape of a triangle. Two sides of the grassy area are 6 miles long. The last side of the grassy area is 7 miles long. Which kind of triangle could the grassy area be classified as?

Isosceles

200

I installed a pool in my backyard. It is shaped like a triangle. One angle measures a 98 degrees. What kind of triangle is my pool classified as? 

Obtuse Triangle

200

I am a quadrilateral with ONE pair of parallel lines. How could you classify me? 

Trapezoid

200

Sarah said that in order for a shape to be a rectangle, it must have 4 right angles and 2 sets of parallel sides, and opposite sides are equal. Tim said that a rectangle must have 4 right angles, 2 sets of parallel sides, and 4 equal sides. Who is correct?

Sarah

300

Which type of angle is greater that 90 degrees

Obtuse Angle 

300

A triangle has the following side lengths: 1 inch, 5 inches, 3 inches. What kind of triangle is it?


Scalene

300

I have 3 angles that measure 60 degrees each. What kind of triangle am I?

Equilangular

300

I am a quadrilateral that has TWO pairs of parallel sides and the opposite side lengths are equal. What am I?

Parallellogram

300

Sam said that in order for a shape to be a parallelogram, it must have two pairs of parallel sides.

Alex said that a parallelogram only needs to have at least one pair of parallel sides.

Sam is correct, what shape is Alex describing? 

Trapezoid

400

What are the 4 types of angles we have discussed? 

Right, Acute, Obtuse, Straight

400

What are the 3 ways to classify a triangle by sides?

Scalene, Isosceles, equilateral

400

A triangle always has 3 angles that add up to be_______degrees.

180

400

I am a quadrilateral with TWO pairs of parallel sides and ALL side lengths are equal. What am I?

Rhombus

400

Taylor says that in order for a shape to be a square, it must have four right angles and four equal sides.

Jordan says that a square only needs to have four right angles, and that any shape with four right angles is automatically a square.

Who is correct and Why?

Taylor is correct because to be a square it needs to have 4 equal sides and 4 right angles.

500

Suzy used the corner of her notebook paper to look at an angles measurement. Both line segments in her angle were lined up perfectly with the corner of her paper. What kind of angle was Suzy looking at? 

A right angle 

500

I have a triangular shaped piece of cake on my plate. One side measures 3 cm, the other side measures 3 cm, and the last side measures 2 cm. What kind of triangle is my piece of cake? 

Isosceles

500

A mountain has the following angles: 45 degrees, 85 degrees and 50 degrees. What could the mountain be classified as?

Acute Triangle

500

I am a quadrilateral that has TWO pairs of parallel sides and the opposite side lengths are equal. I also have 4 right angles. What am I? 

Rectangle

500

Casey says that in order for a shape to be a parallelogram, it must have two pairs of parallel sides.

Riley says that a parallelogram must have two pairs of parallel sides and four right angles.

Casey is correct, what shape is Riley thinking of? 

Rectangle