Answer:



Step-by-step explanation:
Given




Required
Determine the vertices of ABC
If truly the question asks for the vertices of ABC, then the vertices are:

However, I'm quite sure that's not the requirement of the question. So, I'll solve for A'B'C'
To do this, we simply multiply the vertices of ABC by the scale of dilation.













The area of cardboard she used is given by the formula A =
, where s represents the side length of the cube.
Now the question asks for the equation , which we can use to solve for s
it means
we have to solve for s
or in other words we have to isolate s
Now
A=
Divide both sides by 6

or

Take square root on both side

So this is the formula we can use to solve for s
Answer:
surface area =125square ft
Step-by-step explanation:
For triangle a use Pythagorean theorem to find the hypotenuse.
A^2+b^2=c^2
15^2+9^2=c^2
225+81=306
C^2=306
C=17.49 or square root of 306
For b) 18^2+B^2=23^2
324+B^2=529
B^2=205
B=14.32 or square root of 205