# Math in Focus Grade 2 Chapter 19 Answer Key Shapes and Patterns

This handy Math in Focus Grade 2 Workbook Answer Key Chapter 19 Shapes and Patterns detailed solutions for the textbook questions.

## Math in Focus Grade 2 Chapter 19 Answer Key Shapes and Patterns

Math Journal

This pattern is made with plane shapes. Circle the mistake in the pattern. Name the correct shape. Then draw the repeating pattern unit.

The correct solid shape is a ___________.

Explanation:
I drew a circle around the shape that is mistake in the pattern
I drew the repeating pattern unit
The correct solid shape is a  trapezium.

This pattern is made with plane shapes. Circle the mistake in the pattern. Name the correct shape. Then draw the repeating unit.

The correct solid shape is a ___________.

Explanation:
I drew a circle around the shape that is mistake in the pattern
I drew the repeating pattern unit
The correct solid shape is a  rectangular prism.

Challenging practice

Use plane shapes to make a pattern

Question 1.
using shapes of different types.

Explanation:
I made a pattern using a circle, rectangle and a hexagon
I repeated the group of 3 shapes 3 times.

Question 2.
using the same shape of different colors.

Explanation:
I made a pattern using red and yellow squares
I repeated the each colored square alternatively for 3 times.

Question 3.
by turning the shape.

Explanation:
I made a patter using rectangle
I turned the shape to create the pattern
I repeated the group of shapes 3 times.

Chapter Review/Test

Vocabulary

Fill in the blanks with words from the box.

hexagon
trapezoid
pattern
turning

Question 1.
You can form a repeating __________ using different shapes, colors, sizes, and by __________ the shapes.
You can form a repeating pattern using different shapes, colors, sizes, and by turning the shapes.

Question 2.
A __________ has six sides.
A hexagon has six sides.

Question 3.
A __________ is four-sided like the square and the rectangle.
A trapezoid is four-Sided like the square and the rectangle.

Concepts and Skills

Match the shape to its name.

Question 4.

b. cylinder

Explanation:
The above shape is a cylinder
It has a curved face and 2 flat faces.

Question 5.

a. pentagon

Explanation:
The above shape is a pentagon
It has 5 sides.

Question 6.

d. pyramid

Explanation:
The above shape is a pyramid
It has 5 faces.

Question 7.

e. rectangular prism

Explanation:
The above shape is a rectangular prism
It has 6 faces.

Question 8.

c. hexagon

Explanation:
The above given shape is a hexagon
It has six sides.

Question 9.

f. trapezoid

Explanation:
The above shape is a trapezoid
It has 2 parallel side.

a. pentagon
b. cylinder
c. hexagon
d. pyramid
e. rectangular prism
f. trapezoid

Use this shape to make another bigger shape. Write how many of this shape you used. Name the shape you made.

Question 10.

Explanation:
I used triangle and created another bigger shape
I used 6 triangles to make the bigger shape

Draw lines to separate this rectangle into several copies of the same smaller shape.

Question 11.

Explanation:
I drew some lines to separate this rectangles into several copies of the same smaller shape
I made 8 smaller rectangles by drawing 4 lines.

Copy the shape onto the dot grid. Circle one of the angles of the shape.

Question 12.

Explanation:
I copied the above given shape in the dot grid in the right
I drew a circle around 1 of the angles of the shape
I drew a circle on the right angle.

Write the number of plane shapes that make up this figure.

Question 13.

Explanation:
3 plane shapes make up this figure
2 rectangles and 1 triangle make the shape in the picture.

Write the number of solid shapes that make up this model.

Question 14.

Explanation:
12 plane shapes make up this figure
They are 6 cubes, 2 rectangular prisms, 2 cones, 1 sphere and 1 cylinder.

Draw the next figure in each pattern.

Question 15.

Explanation:
Shape pattern occur when a group of shapes are repeated again and again
The above pattern is made of triangles and rectangles of different sizes
I drew a big triangle to complete the patter.

Question 16.

Explanation:
Shape pattern occur when a group of shapes are repeated again and again
There are some circles with change in direction that make the pattern
I drew the next shape to complete the pattern.

Complete the pattern. Circle the correct solid or model.

Question 17.

Explanation:
Shape pattern occur when a group of shapes are repeated again and again
I drew a circle for the correct shape among the 2 shapes that complete the pattern.

Question 18.

Explanation:
Shape pattern occur when a group of shapes are repeated again and again
I drew a circle for the correct shape among the 2 shapes that complete the pattern.

Problem Solving

Look at the pattern. Draw what comes next.

Question 19.

Explanation:
The above pattern is an increasing pattern
I drew 4 triangles together to show the next shape in the pattern.

Question 20.
Susan wants to make a hexagon using the least number of one shape.
a. Which can she use?