A diagram of a swimming pool is below. The width of
the pool is 25 m, find the
length of the actual pool?
7.5 cm
15 cm

The correct answer is 50

7.5×2 = 15

25×2 = 50

80. This is very simple, and your in highschool as it seems. You need to practice more and learn. A isosceles triangle means that one of its interior angles are different, but the other two interior angles are the same. I hope I helped you, but next time try to figure things out for yourself. Maybe try researching these things if you dont understand their concepts, meanings, functions, etc...