Finding Missing Side Length of a Rectangle

Open Ended

Find the unknown side length of the rectangle if its area is 11 m². Show your reasoning.

Multiple Choice

What is the missing side length if multiplying it by 3 2/3 results in 11?

• 3
• 5
• 4
• 2

Open Ended

A worker is tiling the floor of a rectangular room that is 12 feet by 15 feet. The tiles are square with side lengths $$1\frac13$$ feet. How many tiles are needed to cover the entire floor? Show your reasoning.

Multiple Select

A television screen has length $$16\frac12$$ inches, width $$w$$ inches, and area 462 square inches. Select **all** the equations that represent the relationship of the side lengths and area of the television.

• $$w\cdot462\ =\ 16\ \frac{1}{2}$$

• $$16\ \frac{1}{2}\ \cdot\ w\ =462$$

• $$462 \div 16\frac12 = w$$

• $$462 \div w= 16\frac12$$

• $$16\ \frac{1}{2}\ \cdot\ 462\ =\ w$$

Draw

The area of a rectangle is $$17\frac{1}{2}in^2$$ and its shorter side is $$3\frac12$$ in. Draw a diagram that shows this information.

Multiple Choice

The area of a rectangle is $$17\frac12$$ in2 and its shorter side is $$3\frac12$$ in. What is the length of the longer side?

• 7 in
• 6 in
• 4 in
• 5 in

Multiple Choice

The area of a rectangle is 14 square units. It has side lengths $$x$$ and $$y$$ . Given $$x=2\frac13$$ , find the value for $$y$$ .

• 5
• 7
• 8
• 6

Multiple Choice

The area of a rectangle is 14 square units. It has side lengths $$x$$ and $$y$$ . Given $$x=4\frac15$$ , find the value for $$y$$ .

• 5
• 3 1/3
• 4 1/4
• 2 1/2