If a triangle has all three angles equivalent and all three sides equivalent, what type of triangle is it 1. Equilateral
2. Obtuse scalene
3. Obtuse isosceles
4. Acute isosceles

Which term best describes the association between variables a and b? no association a negative linear association a positive linear association a nonlinear association a scatterplot with an x axis labeled, variable a from zero to ten in increments of two and the y axis labeled, variable b from zero to one hundred forty in increments of twenty with fifteen points in a positive trend.

Aman is 6 feet 3 inches tall. the top of his shadow touches a fire hydrant that is 13 feet 6 inches away. what is the angle of elevation from the base of the fire hydrant to the top of the man's head?

Math it's appreciated. (picture provided)