The circumference of a circle can be found using the formula c = π · r 2.
true
false

If the ratio of sum of the first m and n terms of an ap is m2 : n2 , show that the ratio of its mth and nth terms is (2m − 1) : (2n − 1).

Which diagram shows lines that must be parallel lines cut by transversal?

Find the values of the variables and the lengths of the sides of this kite.