This handy Math in Focus Grade 3 Workbook Answer Key Chapter 19 Practice 1 Area provides detailed solutions for the textbook questions.

## Math in Focus Grade 3 Chapter 19 Practice 1 Answer Key Area

**Draw and color two different figures. Use 4 squares (☐) and 2 half-squares (◣) for each figure.**

Question 1.

Answer:

Explanation:

Drawings may differ from one to one.

Using the squares in the grid we can draw different shapes.

Use 4 squares (☐) and 2 half-squares (◣) for each figure.

So, to differentiate the full square and half square shade with different colors, and then draw.

**The figures are made of square and half-square tiles Write the area of each figure in the table.**

Question 2.

Answer:

Explanation:

Area of a square is defined as the number of square units needed to fill a square.

In general, the area is defined as the region occupied inside the boundary of a flat object or 2d figure.

The measurement is done in square units with the standard unit being square meters (m 2).

As, it is mentioned each square 1 unit square and each half square is half square unit.

So, by calculating each 1 square unit and half square units in the figure, we find Area.

In the figure A the area is 7 square units as it has 5 full squares and 4 half squares.

In the figure B the area is 6 square units as it has 6 full squares.

In the figure C the area is 6 square units as it has 6 full squares.

In the figure D the area is 8 square units as it has 7 full squares and 1 half square.

In the figure E the area is 9 square units as it has 7 full squares and 4 half squares.

In the figure F the area is 12 square units as it has 9 full squares and 6 half squares.

Question 3.

Figure _________ and Figure ________ have the same area.

Answer:

Figure B and Figure C have the same area.

Explanation:

In the above table, Figure B and C have the same square units.

So, the Area of B and C is 6 square units.

They has 6 full square.

Question 4.

Figure ________ has the largest area.

Answer:

Figure F has the largest area.

Explanation:

In the above table, when compared with all Figures,

Figure F has the largest area.

So, the Area of F is 12 square units.

It has 9 full square and 3 half squares.

**Draw two different figures with the same area on the grid.**

Question 5.

Answer:

4 x 3 =12 square units or 3 x 4 square units.

Explanation:

Drawings may differ from one to one, depending upon the number of units used in picture.

In the above grid each square is equal to 1 unit.

The area of drawn pictures in the grid is 12 square units.

In figure A it has 4 units vertically and 3 units horizontally.

So, 4 x 3 =12 square units

In figure B it has 3 units vertically and 4 units horizontally.

3 x 4 =12 square units.

4 x 3 =12 square units or 3 x 4 = 12 square units.

**Add squares (☐) or half-squares (◣) to each figure to make its area 7 square units.**

Question 6.

Answer:

Area of the figures = 7 square units.

Explanation:

Area of a square is defined as the number of square units needed to fill a square.

As, it is mentioned each square 1 unit square and each half square is half square unit.

So, by calculating each 1 square unit and half square units in the figure, we find Area.

Add 4 full squares to the figure A to make the area as 7 square units.

Add 1 full square and 2 half squares to the figure B to make the area as 7 square units.

**Complete. Cut out the triangle tiles. Use all the tiles to make three figures with different areas. Glue them in the spaces below.**

Question 7.

Answer:

Explanation:

Area of a square is defined as the number of square units needed to fill a square.

As, it is mentioned each square 1 unit square and each half square is half square unit.

So, by calculating each 1 square unit and half square units in the figure, we find Area.

In figure A the Area is 3 square units, it consists 6 triangles.

In figure B the Area is 4 square units, it consists 8 triangles.

In figure C the Area is 6 square units, it consists 12 triangles.

Question 8.

Which figure has the smallest area? Figure ____________

Answer:

Figure A

Explanation:

As, figure A consists 6 triangles.

So, the Area is 3 square units.

Question 9.

Which figure has the largest area? Figure _____________

Answer:

Figure C

Explanation:

As, figure C consists 12 triangles.

So, the Area is 6 square units.

Question 10.

Order the figures from smallest to largest area.

Answer:

A, B, C

Explanation:

Compare all the figures and arrange them from least to greatest.

As, figure A consists 6 triangles.

So, the Area is 3 square units.

As, figure B consists 8 triangles.

So, the Area is 4 square units.

As, figure C consists 12 triangles.

So, the Area is 6 square units.