Question

On a scale drawing, the scale factor is 1/12. A plum tree is 7 inches tall on the scale drawing. What is the actual height of the tree?

Answer 1

7x12= height of tree

Answer 2

The actual height of the tree is:

• 84 inches.

Explanation:

When you see the scale reference in a drawing, you should denote that the first number reflects the measurement in the drawing, and the number after the two points reflects the actual height, handling the same units on both sides, therefore on the scale given by the exercise:

• 1/12

It means that for each inch in the drawing, it corresponds to 12 inches in reality, therefore, if it is known that the drawing has a 7-inch tree in the drawing, this value must be multiplied by 12 to know the actual size of the plum, then:

• Plum actual size = 7 inches * 12 = 84 inches.