To find the total surface area of the pencil sharpener, we need to find the areas of all the faces and then add them up.
Area of the rectangle (front and back faces):
Length = 15 cm, Width = 6.5 cm
Area = Length x Width
Area = 15 cm x 6.5 cm
Area = 97.5 cm²
Area of the two squares (top and bottom faces):
Side length = 6 cm
Area = Side length x Side length
Area = 6 cm x 6 cm
Area = 36 cm²
Adding up all the areas:
97.5 cm² (rectangle) + 36 cm² (two squares)
= 97.5 cm² + 36 cm²
= 133.5 cm²
Therefore, the total surface area of the pencil sharpener is 133.50 cm².
Use the image to answer the question.
15 cm
6.5 cm
5.77 cm
6 cm
What is the total surface area of the pencil sharpener? Your answer should have two decimal places.
(1 point)
1 answer
1 answer