If the area of a circle is 81pi square feet, find its circumference.

Point s lies between points r and t on . if rt is 10 centimeters long, what is st? 2 centimeters 4 centimeters 6 centimeters 8 centimeters

Could these triangles be congruent? yes, if ab - deyes, if bc = 7yes, if ab - efno, because the hypotenuses must have different lengths

What is the equation of a line, in general form, that passes through point (1, -2) and has a slope of 1/3 3x - y - 7 = 0 x - 3y + 7 = 0 x - 3y - 7 = 0