HELP PLEASE! FIND THE SCALE FACTOR GIVEN: Triangle ABC ~ Triangle DEF.
AB=15
BC=Y
AC=18

DE=12
EF=9
DF=X

Given:

To find:

The values of x and y.

Solution:

We have,

Corresponding sides of similar triangles are proportional.

On substituting the values, we get

Now,

And

Therefore, the value of x is 14.4 units and value of y is 11.25 units.

answer: 4  

the square root of 16 is 4. it is a very simple mathematic concept. a square root when a number multiplied by itself will result in a number. here, the number 16 comes when 4 is multiplied by 4. hence the square root of 16 is 4. you can always figure out a square root by the inverse operation of squaring.