# Into Math Grade 5 Module 20 Answer Key Classify Two-Dimensional Figures

We included HMH Into Math Grade 5 Answer Key PDF Module 20 Classify Two-Dimensional Figures to make students experts in learning maths.

## HMH Into Math Grade 5 Module 20 Answer Key Classify Two-Dimensional Figures

How many right triangles?

How many right triangles can you find in the figure?

5 right angled
Explanation:
There are 5 right angled triangles in the above given triangle
A triangle in which one of the interior angles is 90° is called a right triangle

Turn and Talk

How did you solve the problem?
the angle bounded by two lines perpendicular to each other is a right angle.
the angle measures 90°

What other types of triangles appear to be in the figure?

-An acute angle is defined as an angle that measures less than 90 degrees
-the angle bounded by two lines perpendicular to each other is a right angle.
the angle measures 90°
– an angle that measures more than 90 degrees and less than 180 degrees.

Complete these problems to review prior concepts and skills you will need for this module.

Name the shape in as many ways as possible, if a trapezoid is defined as having exactly 1 pair of parallel sides. Write quadrilateral, square, rectangle, rhombus, trapezoid, or parallelogram.

Question 1.

Explanation:
a flat geometric figure with four sides but with only two sides parallel is a trapezoid.
The above shapes are also the examples of trapezoid

Question 2.

Explanation:
A kite shape is a quadrilateral in which two pairs of adjacent sides are of equal length.
The above given shape is kite shape.

Question 3.

Rhombus .
Explanation:
A rhombus is a 2D shape with four straight, equal sides with both pairs of opposite sides being parallel.

Question 4.

Rectangle.
Explanation:
A rectangle is a 2D shape that has 4 sides, 4 corners, and 4 right angles.

Classify Angles

Classify the angle. Write acute, right, or obtuse.

Question 5.

Right angled
Explanation:
-the angle bounded by two lines perpendicular to each other is a right angle.
the angle measures 90°

Question 6.

acute angle
Explanation:
An acute angle is defined as an angle that measures less than 90 degrees

Question 7.