Question

1. if a triangle with sides 3 cm, 4 cm, and 5 cm is dilated by a scale factor of 2, what are the new side lengths?

a. 9 cm, 12 cm, 15 cm
b. 6 cm, 7 cm, 8 cm
c. 12 cm, 16 cm, 20 cm
d. 6 cm, 8 cm, 10 cm

Explanation:

Step1: Multiply first side

$3\times2 = 6$ (cm)

Step2: Multiply second side

$4\times2 = 8$ (cm)

Step3: Multiply third side

$5\times2 = 10$ (cm)

Answer:

d. 6 cm, 8 cm, 10 cm