The area of a rectangular red sticker is 45 square millimetres. It is 9 millimetres wide. How tall is it?
Question
The area of a rectangular red sticker is 45 square millimetres. It is 9 millimetres wide. How tall is it?
Solution
To find the height of the rectangular sticker, you need to use the formula for the area of a rectangle, which is width times height (A = w * h).
Here, you know the area (A) is 45 square millimetres and the width (w) is 9 millimetres.
You can rearrange the formula to solve for the height (h): h = A / w.
Substitute the given values into the formula: h = 45 / 9.
So, the height of the sticker is 5 millimetres.
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