To get the number of standard deviation that 77 is from the mean, we get the z-score: z-score is given by z=(x-μ)/σ where: μ-mean σ-standard deviation thus the value of z from the information above is: x=77 μ=58 σ=7 z=(77-58)/7=2.7143
Divide one of the sides in the bigger triangle by its corresponding side in the smaller triangle to determine the scale factor for the smaller triangle to the bigger triangle.
