This handy Math in Focus Grade 3 Workbook Answer Key Chapter 19 Practice 4 Area and Perimeter detailed solutions for the textbook questions.

## Math in Focus Grade 3 Chapter 19 Practice 4 Answer Key Area and Perimeter

**Complete. Find the perimeter and area of each shaded figure.**

Question 1.

Perimeter of Figure A is __________ centimeters.

Area of Figure A is __________ square centimeters.

Answer:

Perimeter of Figure A is 12 cm centimeters.

Area of Figure A is 6 square centimeters.

Explanation:

Perimeter is the distance around the edge of a shape.

Area is used to define the amount of space taken up by a 2D shape or surface.

We measure area in square units : cm² or m².

Area is calculated by multiplying the length of a shape by its width.

Question 2.

Perimeter of Figure B is __________ inches.

Area of Figure B is __________ square inches.

Answer:

Perimeter of Figure B is 13 inches.

Area of Figure B is 6 square inches.

Explanation:

Perimeter is the distance around the edge of a shape.

Area is used to define the amount of space taken up by a 2D shape or surface.

We measure area in square units : cm² or m².

Area is calculated by multiplying the length of a shape by its width.

Question 3.

Perimeter of Figure C is __________ centimeters.

Area of Figure C is __________ square centimeters.

Answer:

Perimeter of Figure C is 18 centimeters.

Area of Figure C is 8 square centimeters.

Explanation:

Perimeter is the distance around the edge of a shape.

Area is used to define the amount of space taken up by a 2D shape or surface.

We measure area in square units : cm² or m².

Area is calculated by multiplying the length of a shape by its width.

Question 4.

Perimeter of Figure D is __________ inches.

Area of Figure D is __________ square inches.

Answer:

Perimeter of Figure D is 18 inches.

Area of Figure D is 10 square inches.

Explanation:

The perimeter of a two-dimensional figure is the distance covered around it.

It defines the length of shape, whether it is a triangle, square, rectangle or a circle.

Area is the number of unit squares equal in measure to the surface of a figure.

**Complete. Find the perimeter and area of each shaded figure.**

Question 5.

Perimeter of Figure A is __________ meters.

Area of Figure A is __________ square meters.

Answer:

Perimeter of Figure A is 12 meters.

Area of Figure A is 5 square meters.

Explanation:

Perimeter is the distance around the edge of a shape.

Area is used to define the amount of space taken up by a 2D shape or surface.

We measure area in square units : cm² or m².

Area is calculated by multiplying the length of a shape by its width.

Question 6.

Perimeter of Figure B is __________ feet.

Area of Figure B is __________ square feet.

Answer:

Perimeter of Figure B is 16 feet.

Area of Figure B is 7 square feet.

Explanation:

Perimeter is the distance around the edge of a shape.

Area is used to define the amount of space taken up by a 2D shape or surface.

We measure area in square units : cm² or m².

Area is calculated by multiplying the length of a shape by its width.

Question 7.

Perimeter of Figure C is __________ meters.

Area of Figure C is __________ square meters.

Answer:

Perimeter of Figure C is 14 meters.

Area of Figure C is 6 square meters.

Explanation:

Perimeter is the distance around the edge of a shape.

Area is used to define the amount of space taken up by a 2D shape or surface.

We measure area in square units : cm² or m².

Area is calculated by multiplying the length of a shape by its width.

Question 8.

Perimeter of Figure D is __________ feet.

Area of Figure D is __________ square feet.

Answer:

Perimeter of Figure D is 14 feet.

Area of Figure D is 7 square feet.

Explanation:

Perimeter is the distance around the edge of a shape.

Area is used to define the amount of space taken up by a 2D shape or surface.

We measure area in square units : cm² or m².

Area is calculated by multiplying the length of a shape by its width.

**Draw two different figures with an area of 5 square centimeters.**

Question 9.

Do they have the same perimeter? _____________

Answer: No

Explanation:

Both have different perimeter,

As, the perimeter of a two-dimensional figure is the distance covered around it.

It defines the length of shape, whether it is a triangle, square, rectangle, circle and so on.

**Draw two different figures with a perimeter of 8 centimeters.**

Question 10.

Do they have the same area? _____________

Answer:

yes, they have the same area.

Explanation:

Area is the amount of space taken up by a 2D shape or surface.

We measure area in square units : cm² or m².

Area is calculated by multiplying the length of a shape by its width.

**Find the perimeter and area of each figure.**

Question 11.

Perimeter = ___________

Area = __________

Answer:

Perimeter = 12 m

Area =9 m2

Explanation:

Perimeter is the distance around the edge of a shape.

Area is used to define the amount of space taken up by a 2D shape or surface.

We measure area in square units : cm² or m².

Area is calculated by multiplying the length of a shape by its width.

Question 12.

Perimeter = _____________

Area = ___________

Answer:

Perimeter = 15m

Area = 9 m2

Explanation:

Perimeter is the distance around the edge of a shape.

Area is used to define the amount of space taken up by a 2D shape or surface.

We measure area in square units : cm² or m².

Area is calculated by multiplying the length of a shape by its width.

**Write yes or no.**

Question 13.

Do Figures A and B have the same area? ___________

Answer: YES

Explanation:

Area is the amount of space taken up by a 2D shape or surface.

Figure A and B have the same are

just by counting the 1×1 m box areas in the given figure will be the area of the figure.

Question 14.

Do Figures A and B have the same perimeter? ___________

Answer: NO

Explanation:

Perimeter is the distance around the edge of a shape.

Figure A and B do not have the same perimeter.

the shape of the figure A and B are different in shape,

the perimeters are also different to each other.

Question 15.

What is different about perimeter and area? Explain.

Answer:

Perimeter is the distance around the outside of a shape.

Area measures the space inside a shape.

Learn how to calculate perimeter and area for various shapes.

Explanation:

Area- Area is defined as space/region occupied by a two-dimensional flat object.

It is measured in square units.

Consider a square having side ‘a’ then the area of the square is given by a^{2}.

Perimeter- Perimeter is defined as the length of boundaries of a closed figure.

For example, a square having side length equal to ‘a,’ then the perimeter will be the sum of all its four sides, i.e. ‘4a.’

The measurement of the Perimeter is in the unit.