Answer:
Triangle A - Scalene
Triangle B - Isosceles
Triangle C - Isosceles
Triangle D - Equilateral
Step-by-step explanation:
Scalene - No equal sides or angles
Isosceles - 2 equal sides or 2 equal angles
Equilateral - all equal sides or all equal angles
There you go. I assumed you know how to derrivate!
y = k/x
5 =k/7.5
k = 7.5/*5= 37.5
answer is D
