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In Exercises 1-4, classify the polygon by the number of sides. Tell whether it is convex or concave. Example 1 1. 2. 3. AIn Exercises 5-10, find the perimeter of the polygon with the given vertices. [ Example 2 5. G(2, 4), H(2, -3), J(-2, -3), K(-2,4) 6. Q(-3, 2), R(1, 2), S(1, -2), T(-3, -2) 7. U(-2, 4), V(3, 4), W(3, -4) 8 X(-1, 3), Y(3. 0), Z(-1. -2) 9. y L(1, 4) 4 2 N( 2, 0) 1-2 2 P ( - 1 , - 2) M(4, 0) Ay F(-2, 4) | A(0, 4) E(-2, 2) 2 B(2, 0) 4 -2 4 X D(0, 2) (2 2)In Exercises 15-18, use the diagram to find the perimeter and the area of the polygon. A(-5, 4) B(0, 3) 2 F(-2, 1) -4 -2 2 4 6 X C(4, -1) -2 E(2, -3) D(4, -5) 6 15. ACDE 17 rectangle BCEF19. ERROR ANALYSIS Describe and correct the error in finding the area of the triangle. X 4 B (5, A (4, 3) 2 2 4 6 X 2 C(1, 1) b = 5-1=4 h = V(5 - 4)2+ (1 - 3)2 = 15 A= 3bh =(4)(V5) = 2V5 The area is 21 5 square units.In Exercises 11-14, find the area of the polygon with the given vertices. D Example 3 11. E(3, 1), F(3, -2), G(-2, -2) 12. (-3, 4), K(4, 4), L(3, -3) 13. W(0, 0), X(0, 3), Y(-3, 3), Z(-3, 0) 14. N(-4, 1), P(1, 1), @(3, -1), R(-2, -1)In Exercises 39 and 40, use the diagram. R V T 39 Give another name for RT. 40. Name two pairs of opposite rays.In Exercises 41 and 42, the endpoints of a segment are given. Find the coordinates of the midpoint M and the length of the segment. 41 J (4, 3) and X(2, -3) 42. L(-4, 5) and M(5, -3)