How much greater area largest to smallest 165760-14090

This is about circle theorems. someone asap : (

Present age of man is 45 years, 5 years back his age was 4 times age of his son what is present age of his son?

Which statement explains how you could use coordinate geometry to prove the opposite sides of a quadrilateral are congruent? a. use the slope formula to prove the slopes of the opposite sides are the same. b. use the slope formula to prove the slopes of the opposite sides are opposite reciprocals. c. use the distance formula to prove the lengths of the opposite sides are the same. d. use the distance formula to prove the midpoints of the opposite sides are the same.