math

Corollary

________: is theorem with a proof that follows as a direct result of another theorem.

the slope-intercept form

of a a linear equation is y=mx+b where m is the slope of the tine and b is the y-intercept

the point-slope for

of a linear equation is y-y1=m(x-x1), where (x1,y1) is any point on the line and m is the slope of the line

formulas

y=mx+b and y-y1=m (x-x1)

by their sides

scalene (no equal sides), isosceles (2 equal sides), equilateral (3 equal sides)

right triangle

a triangle in which one of the interior angles is 90°

obtuse triangle

more than 90°less then 180°

acute triangle

less than 90°

equilateral triangle

a triangle that has all its sides equal in length

theorem/ triangles angle-sum theorem

the sum of the measures of the angles of a triangle is 180°

exterior angle theorem

the measure of an exterior angle of a triangle is equal to the sum of the measures of the two remote interior angles