Use the image to answer the question.
A composite shape is drawn using a rectangle and 2 triangles. A horizontally aligned rectangle is 9 centimeters long and 3 centimeters wide. A right triangle facing upward adjoins the rectangle on the left side marked 3 centimeters. A right triangle facing downward adjoins the rectangle on the right side. The base leg of both triangles measures 2 centimeters.
Hector designs the piece of jewelry shown below. All lengths are marked in centimeters. What is the total area of the piece of jewelry?
(1 point)
Responses
33 square centimeters
33 square centimeters
39 square centimeters
39 square centimeters
30 square centimeters
30 square centimeters
27 square centimeters
27 square centimeters
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The total area of the piece of jewelry is 39 square centimeters.
To calculate:
Rectangle area = length x width = 9 x 3 = 27 square centimeters
Triangle area = 1/2 x base x height = (1/2 x 3 x 3) + (1/2 x 3 x 2) = 4.5 + 3 = 7.5 square centimeters
Total area = 27 (rectangle) + 7.5 (2 triangles) = 39 square centimeters