2022 AMC 8

Complete problem set with solutions and individual problem pages

Problem 1 Easy

The Math Team designed a logo shaped like a multiplication symbol, shown below on a grid of 1-inch squares. What is the area of the logo in square inches?

  • A.

    10

  • B.

    12

  • C.

    13

  • D.

    14

  • E.

    15

Answer:A

Solution 1 (A quick solution)

We can see that there are 4 whole squares, since the area of each square will be 1, 4 \times 1 = 4. Next, there are 12 half squares, and 2 half squares is 1 whole square, so 12/2 = 6 whole squares. The area of this will be 6 \times 1 = 6. Finally, we can add the 2 numbers: 4 + 6 = \boxed{(A)\ 10}.

 

Solution 2

Draw the following four lines as shown:

We see these lines split the figure into five squares with side length \sqrt{2}. Thus, the area is 5 \cdot \left(\sqrt{2}\right)^2 = 5 \cdot 2 = \boxed{(A)\ 10}.