Finding Area of Rectangles and Squares

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Objective

I can calculate the area of rectangles and squares using appropriate formulas.

Part 1 of 4

Warm-up video

Mometrix Academy · 7:13Vetted channel

We don't generate video — this one is by Mometrix Academy on YouTube. The practice questions and exit ticket below were drafted by AI for this objective, and every question is editable in the teacher guide.

Part 2 of 4

Key concepts

3 concepts

  1. 1

    The perimeter of a rectangle can be found by using the formula P = 2l + 2w, where l is the length and w is the width.

  2. 2

    The area of a rectangle is found by multiplying the length by the width, and the answer is always measured in square units.

  3. 3

    The area of a square is found by squaring the length of one of its sides, A = , because all four sides are equal.

Part 3 of 4

Practice

12 questions

1

What does the term 'perimeter' literally mean, based on its Greek roots?

2

Explain the difference between perimeter and area in your own words, relating it to a real-world example like fencing or tiling a patio.

Part 4 of 4

Exit ticket

Quick comprehension check

A rectangle has a length of 13 meters and a width of 6 meters. What is the area of the rectangle?

Sample answer included in the free materials

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Teacher guide, student handout, and slides — free, in Google Docs format

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