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Understanding Area: Formulas and Calculations for Squares and Rectangles

Area is the measure of space enclosed by a figure, represented in square units. It is a two-dimensional concept, calculated differently for various shapes. The area of a square is found using the formula A = side x side. For rectangles, the area is calculated with A = base x height. This guide illustrates how to find area with examples, including a square measuring 3m on each side (9 m²) and a rectangle measuring 6m by 2m (12 m²). Learn the essential formulas and apply them to solve for area in different scenarios.

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Understanding Area: Formulas and Calculations for Squares and Rectangles

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  1. What is area? • The amount of space that a figure encloses • The number of square units that covers a shape or figure. • It is two-dimensional • It is always answered in square units

  2. Area of a square • S is the side • Area= side x side • A= s x s

  3. Area of a rectangle • b is the base(w is the width) • h is the height(l is the height) • Area= base x height (length x width) • A= b x h (l x w)

  4. Find the area of a square using the formula • To find the area of a square, multiply the side x side • Area = side x side • Area = 3 m x 3 m • The area is 9 m2 3 m 3 m

  5. Find the area of the rectangle using the formula • To find the area of a rectangle, multiply the base x height. • Area= base x height • The base= 6 m • The height=2 m • Area=6 m x 2 m • The area is 12 m2 2 m 6 m

  6. What is the area of this figure? • It is a square • Formula for the area of a square is side x side • Side= 17 m • Area= 17 m x 17 m • A= 289 m2 17 m. 17 m

  7. What is the area of this figure? • It is a rectangle • Formula for the area of a rectangle is length x width • Length= 8m • Width= 3 m • Area= 8 m x 3 m • A=24 m2 8 m 3 m

  8. What is the area of this figure? • It is a square • Formula for the area of a square is side x side • Side= 12 cm • Area= 12 cm x 12 cm • A= 124cm2 12 cm 12 cm

  9. What is the area of this figure? • It is a rectangle • Formula for the area of a rectangle is length x width • Length= 13 cm • Width= 4 cm • Area= 13 cm x 4 cm • A= 52 cm2 13 cm 4 cm

  10. What is the area of this figure? 7 cm • It is a rectangle • Formula for the area of a rectangle is length x width • Length= 16 cm • Width= 7 cm • Area= 16 cm x 7 cm • A= 112 cm2 16 cm

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