Question

If a scale factor of One-fifth is used to make a reduction, what is the base of the original triangle? Original triangle Reduced triangle Height 3 Base ___

A.1
B.10
C.15
D.25

Answer 1

The base of the original triangle is 15.

Step-by-step explanation:

To find the base of the original triangle, we can use the scale factor and the reduced triangle's height. Since the scale factor is one-fifth, it means that the reduced triangle's height is one-fifth of the original triangle's height.

Given that the reduced triangle's height is 3, we can multiply it by the scale factor (one-fifth) to find the original triangle's height.

Original triangle's height = Reduced triangle's height * Scale factor = 3 * 5 = 15

Therefore, the base of the original triangle is 15.