Area Bellringer

Find the surface area. Do not put any labels in.

Find the surface area. No labels.

Find the surface area of the cube.

• 100 sq in

• 400 sq in

• 600 sq in

Find the surface area of this figure.

• 148 cm²

• 120 cm²

A city is building a new library. The library is rectangular and measures 300 feet (ft) by 150 ft. A concrete sidewalk w ft wide will be added around the entire library, as shown. The city will decide how wide to make the sidewalk based on the price of the concrete. Create an equation for A, the area of the sidewalk, in square feet.

Enrique is planning on building a wood deck in his backyard. He uses the function g(x) = (x + 4)(2x - 3) to represent the area of the wood deck. Enrique will cut a square section out of the deck with side length x - 2 to plant a tree. Create a function f(x) to represent how many square feet Enrique’s wood deck is after the square section is cut out.

Jonah makes wooden rectangular tabletops. The length of each tabletop is always 10 inches greater than the width. Create an equation to model the area, A, of a tabletop with a width of w inches.

A walkway with a width of w feet surrounds a rectangular garden. The combined area of the walkway and the garden is represented by the expression shown. w² + 25w + 150 What does 150 represent in this situation?

• the width of the garden in feet

• the length of the walkway in feet

• the area of the garden in square feet

• the area of the walkway in square feet

Find the area of the parallelogram.

• 13 units²

• 10 units²

• 12 units²

• 6 units²

What is the area of this rectangle?

• 42 cm²

• 108 cm²