2x – yl. when x = 3 and y = 10

Can (2,3 and square root 10) be sides ona right triangle?

Does anyone know how to do geometryme with this problem

(c) the diagram shows the first three shapes of a matchsticks arrangement. first shape = 3second shape = 5third shape = 7given m represents the number of matchstick used to arrange the n'th shape.(i) write a formula to represent the relation between m and n. express m as the subjectof the formula.(ii) 19 matchsticks are used to make the p'th shape. find the value of p.