Area & Perimeter of Triangles & Quadrilateralsnotes Area (A): The amount of a figure Perimeter (P): The distance takes up figure *Measured in square units *Measured in fnear units Square A = $1 3 i A= P = 4s P = 3n Rectangle 4 in A =OW 3 in A = P = 20 + 2w P = W Parallelogram (note: the base can be any side; the height is always perpendicular to the base) b 20 A = bh A= P = o+ 2b + c P = b Triangle (note: the base and height must be perpendicular) A= bh or - bh A = P = o+ b+c P = Trapezoid (note: the height of a trapezoid is the perpendicular distance between the bases) 10 m A = (b1 + by)h 12 m 16 m 10 m A = h P = a+ c+ b+ bz Hm P = Rhombus/Kite (note: the diagonals of a rhombus/kite are perpendicular) A = dd A = P = 20 + 2b P = 40 P =. Olivia Wilhoite, 2024Area & Perimeter of Triangles & Quadrilaterals notes continued Area of Perimeter of Irregular Shapes Example: Find the area and perimeter of the figure below. Hint: split the irregular figure into more familiar figures like rectangles. 9 ft 10 ft 7 ft Hft Examples: Find the area and perimeter of each figure below. 9 yd 2. 20 in 15 in 1 yd A = A =. P = P = 4. 3 5.8 f+ 5.7 m 10 ft 4 ft 4 m! n A= 4 m 3 m A = P = P = 5. 6 ft 5 ft A = 3 ft A= P = P = 7. 8. Find the area only. 10 fti A= P = A= Olivia Willhoite, 2024