Area or perimeter of a square/rectangle

CONCEPTS

Rectangles

• Perimeter = 2 * l + 2 * w (l = length, w = width)

• Area = l * w (l = Length, w = width)

Squares

• Perimeter = 2 * l + 2 * l

• Area = l * l

PRACTICE PROBLEMS

Question 1 Given leg lengths of 5 & 3 in a rectangle, what is the area?

-- Answer -- 15

5 * 3 = 15

Question 2 Given a square with an area of 10, what is the perimeter?

-- Answer -- 4 √10

A = 10 = l * l, l = √10

P = 4l = 4√10

ACT PRACTICE PROBLEMS

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