15 + 1 because you are using apsolute value so that negative 1 becomes a positive
We can use Pythagorean's Theorem in order to find the remaining side length
a^2+b^2=c^2
Let a be the shadow length
Let b be the height of the flagpole
Let c be the hypotenuse
28^2+b^2=35^2
784+b^2=1225
b^2=1225-784
b^2=441
b=√441
b=21
Therefore the flagpole is 21 meters tall.
Hope this helps!
The first one would be (2x)(7) and plus the other 75 it would be 738 with that in total of it c 5 3-15
