Assess Yourself
How well do you understand the ideas in this lesson?
Goal:
Goal:
Show What You Know!
Are you ready to take this lesson's quiz? These questions will help you find out. Go back to the lesson if you do not know an answer.
Which shape is a quadrilateral?
Sorry, that is not right. This shape is an acute triangle.
That is right! This shape is a rectangle.
Sorry, that is not right. This shape is an obtuse triangle.
Which shape is a triangle?
Correct! This shape is an obtuse triangle.
Sorry, that is not correct. This shape is a rhombus.
Sorry, that is not correct. This shape is a square.
What is the name of the shape below?
- acute triangle
- obtuse triangle
- rectangle
- square
Sorry, that is not right. An acute triangle has 3 sides, and this shape has 4 sides.
Sorry, that is not right. An obtuse triangle has 3 sides, and this shape has 4 sides.
Sorry, that is not right. A rectangle does not have 4 equal sides, and this shape does.
That is right! This shape has 4 equal sides and 4 right angles.
What is the name of the shape below?
- rhombus
- acute triangle
- square
- obtuse triangle
Sorry, that is not correct. A rhombus has 4 sides, and this shape has 3 sides.
Correct! This shape has 3 sides and 3 angles that are less than 90°.
Sorry, that is not correct. A square has 4 sides, and this shape has 3 sides.
Sorry, that is not correct. An obtuse triangle has 1 angle that is greater than 90°. This shape does not have any angles that are greater than 90°.
What is the name of the shape below?
- rhombus
- square
- acute triangle
- rectangle
That is right! This shape has 4 equal sides and 0 right angles.
Sorry, that is not right. A square has 4 right angles, and this shape does not have any right angles.
Sorry, that is not right. An acute triangle has 3 sides, and this shape has 4 sides.
Sorry, that is not right. A rectangle has 4 right angles and does not have 4 equal sides. This shape does not have any right angles and has 4 equal sides.
Which description matches the shape below?
- A triangle that has 3 angles that are less than 90°.
- A quadrilateral that has 2 sets of equal sides and 4 right angles.
- A quadrilateral that has 4 equal sides and 4 right angles.
- A triangle that has 1 angle that is greater than 90°.
Sorry, that is not correct. This description is for an acute triangle.
Sorry, that is not correct. This description is for a rectangle.
Sorry, that is not correct. This description is for a square.
Correct! This shape is an obtuse triangle.
Which description matches the shape below?
- A triangle that has 1 angle that is greater than 90°.
- A quadrilateral that has 4 equal sides and 0 right angles.
- A quadrilateral that has 2 sets of equal sides and 4 right angles.
- A quadrilateral that has 4 equal sides and 4 right angles.
Sorry, that is not right. This description is for an obtuse triangle.
Sorry, that is not right. This description is for a rhombus.
That is right! This shape is a rectangle.
Sorry, that is not right. This description is for a square.
Which description matches the shape below?
- A quadrilateral that has 4 equal sides and 0 right angles.
- A triangle that has 3 angles that are less than 90°.
- A quadrilateral that has 4 equal sides and 4 right angles.
- A triangle that has 1 angle that is greater than 90°.
Sorry, that is not correct. This description is for a rhombus.
Correct! This shape is an acute triangle.
Sorry, that is not correct. This description is for a square.
Sorry, that is not correct. This description is for an obtuse triangle.
Read Logan’s riddle below. Then choose the correct shape name that solves the riddle.
This shape has 4 sides. All of its sides have the same length. It has 0 right angles. What shape did Logan find?
- square
- acute triangle
- rhombus
- rectangle
Sorry, that is not right. Logan’s riddle says that the shape has 0 right angles.
Sorry, that is not right. Logan’s riddle says that the shape has 4 sides.
That is right! Logan found a rhombus!
Sorry, that is not right. Logan’s riddle says that the shape has sides that are all the same length and has 0 right angles.
Read Logan’s riddle below. Then choose the correct shape name that solves the riddle.
This shape has 3 sides. It has one angle that is greater than 90°. What shape did Logan find?
- obtuse triangle
- acute triangle
- square
- rectangle
Correct! Logan found an obtuse triangle!
Sorry, that is not correct. Logan's riddle says that the shape has one angle that is greater than 90°.
Sorry, that is not correct. Logan's riddle says that the shape has 3 sides.
Sorry, that is not correct. Logan's riddle says that the shape has 3 sides.
Summary
Questions answered correctly:
Questions answered incorrectly: