Name the shape
Name the triangle
Find the angle
Shape riddles
Lines, rays and segments
100

This shape has two pairs of parallel sides and 4 right angles.

Rectangle

100

A triangle with all sides the same length and all angles less than 90°.

Equilateral acute triangle

100

Two angles make a right angle. One of them is 30°. What is the other angle?

60° 

100

I have three sides. What shape am I?

Triangle

100

This part of a line has two endpoints.

Line segment

200

This shape has one pair of parallel sides.

Trapezoid

200

A triangle with two equal sides and 90° angle.

Isosceles right triangle

200

Two angles make a flat line/straight angle. One angle is 45°. What is the other angle?

135° 

200

I have four equal sides and four right angles. What shape am I?

Square

200

This part of a line has one endpoint and goes on forever.

Ray

300

Name a shape that has both parallel and perpendicular lines.

Square or rectangle

300

This triangle has no equal sides and one angle greater than 90° .

Scalene obtuse triangle

300

Two angles add up to a right angle. One angle is 37°. What is the other angle?

53° 

300

I have six sides. What shape am I?

Hexagon

300

This goes on forever in both directions.

Line

400

This shape has four equal sides and four right angles.

Square

400

This triangle has two equal sides and all angles less than 90° .

Isosceles acute triangle

400

I split one right angle into two equal angles. What are the measures of the smaller angles?

45° and 45° 

400

I have five sides. What shape am I?

Pentagon

400

Two lines that never meet because they stay the same distance apart.

Parallel lines

500

This shape has two pairs of parallel sides, but no right angles.

Parallelogram or rhombus

500

This triangle has no equal sides and all angles less than 90° .

Scalene acute triangle

500

Three angles make a straight line/angle. One angle is 72° and another is 46°. What is the measure of the third angle?

62° 

500

I have eight sides. What shape am I?

Octagon

500

Two lines that cross and make right angles.

Perpendicular lines

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