This handy Math in Focus Grade 3 Workbook Answer Key Chapter 19 Practice 2 Square Units (cm2 and in2) detailed solutions for the textbook questions.

## Math in Focus Grade 3 Chapter 19 Practice 2 Answer Key Square Units (cm^{2} and in^{2})

**Find the area of each shaded figure in square centimeters. Then complete the table.**

Question 1.

Answer:

Explanation:

The simplest and most commonly used area calculations are for squares and rectangles.

To find the area of a rectangle, multiply its height by its width.

For a square you only need to find the length of one of the sides as each side is the same length and,

then multiply this by itself to find the area.

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

Answer:

Explanation:

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.

The area of each figure A is 8 cm^{2}.

The area of each figure B is 8 cm^{2}.

Question 2.

What is the area of the figures?

Answer: 8 cm²

Explanation:

Drawings may differ from one to one.

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

The area of drawn pictures in the grid is 8 square units.

In figure A it has 4 full squares and 8 half squares.

In figure B it has 6 full squares and 4 half squares.

So, the area of both figures = 8 cm^{2}.

Question 3.

The figures are made of square and half-square tiles. Find the area of each figure.

Answer:

Explanation:

The simplest and most commonly used area calculations are for squares and rectangles.

To find the area of a figures is by adding all the areas covered by the squares and triangles,

two triangles is one square.

Question 4.

Which figure has a larger area? Figure _____________

Answer:

Figure D has largest area

Explanation:

The simplest area calculations are for squares and rectangles.

To find the area of a figures is by adding all the areas covered by the squares and triangles,

two triangles is one square.

Figure D has largest area of 8 cm^{2}

Question 5.

How can you make both figures have the same area?

Answer:

By adding 3 square centimeters to the figure C ,

we can make both the figures as same area.

Explanation:

Observe the given figure C and D ,

Figure C has 3 units less than figure D.

**Find the area of each shaded figure in square inches. Then complete the table.**

Question 6.

Answer:

Explanation:

The simplest and most commonly used area calculations are for squares and rectangles.

To find the area of a figures is by adding all the areas covered by the squares and triangles,

two triangles is one square.

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

Question 7.

Answer:

Explanation:

The simplest and most commonly used area calculations are for squares and rectangles.

To find the area of a figures is by adding all the areas covered by the squares and triangles,

two triangles is one square.

The area of each figure A is 8 in^{2}.

The area of each figure B is 8 in^{2}.

Question 8.

The area of each figure is ____________ in.^{2}.

Answer: 8 in.^{2
}Explanation:

The simplest and most commonly used area calculations are for squares and rectangles.

To find the area of a figures is by adding all the areas covered by the squares and triangles, two triangles is one square

The area of each figure A is 8 in.^{2}.

The area of each figure B is 8 in.^{2}.

**Find the area of each shaded figure in square inches. Then complete the table.**

Question 9.

Answer:

Explanation:

The simplest and most commonly used area calculations are for squares and rectangles.

To find the area of a figures is by adding all the areas covered by the squares and triangles,

two triangles is one square.

Question 10.

Figure __________ and Figure __________ have the same area.

Answer:

Figure A and Figure B have the same area of 11in.^{2
}Explanation:

Compare the figures A and B,

the area of both the figures is same as 11in.^{2
}Question 11.

Figure ___________ has the largest area.

Answer:

Figure D has the largest area of 13 in.^{2
}Explanation:

Compare all the given figures,

Area of figure D is the greatest with 13 in.^{2
}Question 12.

Figure __________ has the smallest area.

Answer: C

Figure C has the smallest area of 10 in.^{2
}Explanation:

Compare all the given figures,

Area of figure C is the least with 10 in.^{2}