Leonardo da Vinci drew a portrait of a young woman. The portrait is shaped like a rectangle. It is 13.5 inches long and 10 inches wide. What is the area of the portrait?

10 * 13.5

move the decimal point one place to the right to multiply by ten.

135

To find the area of a rectangle, you need to multiply its length by its width. In this case, the length of the portrait is 13.5 inches and the width is 10 inches.

The formula for the area of a rectangle is:

Area = Length × Width

Plugging in the given values, we have:

Area = 13.5 inches × 10 inches

To multiply these two numbers, simply multiply the numbers together:

Area = 135 square inches

Therefore, the area of the portrait is 135 square inches.