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The area of a rectangular red sticker is 45 square millimetres. It is 9 millimetres wide. How tall is it?

Question

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Solution

1. ### Break Down the Problem

We are given:

  • Area of the rectangle (A) = 45 square millimeters
  • Width (w) = 9 millimeters We need to find the height (h) of the sticker.

2. ### Relevant Concepts

The formula for the area of a rectangle is: A=w×h A = w \times h where A A is the area, w w is the width, and h h is the height.

3. ### Analysis and Detail

To find the height, we can rearrange the formula: h=Aw h = \frac{A}{w} Now substituting the known values into the equation: h=45 mm29 mm h = \frac{45 \text{ mm}^2}{9 \text{ mm}}

4. ### Verify and Summarize

Calculating the height: h=5 mm h = 5 \text{ mm} Thus, the height of the rectangular red sticker is 5 millimeters.

Final Answer

The height of the sticker is 5 millimeters.

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