Perpendicular to the line -2x+y=1; contains the point (-2,-4); what is the equation of the line?

What dimensions can créate more than one triangle ?

Circle a has a diameter of 7 inches, a circumference of 21.98 inches, and an area of 38.465 square inches. the diameter of circle b is 6 inches, the circumference is 18.84 inches, and the area is 28.26 square inches. part a: using the formula for circumference, solve for the value of pi for each circle. (4 points) part b: use the formula for area and solve for the value of pi for each circle. (4 points)

Are the corresponding angles congruent? explain why or why not.