This document provides information about calculating the area of different shapes. It defines area as the amount of surface a figure covers and gives the formulas to calculate area as: for a rectangle - length x width, for a parallelogram - base x height, and for a triangle - 1/2 x base x height. It then provides examples of using the formulas to calculate the area of different shapes, including calculating the area of a parallelogram stained-glass window section and the area of a rectangular yard.

1. Name ____________________________________Date __________________<br />Mrs. Labuski & Mrs. Rooney Period _________ Lesson 10-2 Area<br />VOCABULARYDEFINITIONEXAMPLEAREAThe area of a figure is the amount of surface it covers.Answer is always written in units2 or square unitsThere are 3 rows of 5 squares.3 • 5 = 15So, the area of the rectangle is 15 square unitsArea of rectangleA = length x widthA = lwA = ________A = ________A = ________A = ________Area of parallelogramA = base x heightA = bhA = ________A = ________A = ________ A = ________Area of triangleA = ½ base x heightA = ½ bhA = ________A = ________A = ________A = ________<br />Find the area of each figure. Be sure to write the formula & plug in the numbers.<br />A = length x widthA = lwA = 8 x 12A = 96A = 96 mi2A = base x heightA = bhA = 2.1 x 5A = 10.5A = 10.5 in2A = ½ base x heightA = ½ bhA = ½ x 4 x 3.5A = 2 x 3.5A = 7 ft2<br />A section of a stained-glass window is shaped like a parallelogram. Its base is 6.5 inches, and its height is 4 inches. How much glass is needed to cover the section completely?<br />A = bh<br />A = 6.5 x 4<br />A = 26 in2<br />Your rectangular yard is 10 feet wide and 26 feet long. How many square feet of grass do you need to plant if you want to cover the entire yard?<br />A = lw<br />A = 10 x 26<br />A = 260 ft2<br />Name ____________________________________Date __________________<br />Mrs. Labuski & Mrs. Rooney Period _________Lesson 10-2 Area<br />VOCABULARYDEFINITIONEXAMPLEAREAArea of rectangleA = ________A = ________A = ________A = ________Area of parallelogramA = ________A = ________A = ________ A = ________Area of triangleA = ________A = ________A = ________A = ________<br />Find the area of each figure. Be sure to write the formula & plug in the numbers.<br />A section of a stained-glass window is shaped like a parallelogram. Its base is 6.5 inches, and its height is 4 inches. How much glass is needed to cover the section completely?<br />Your rectangular yard is 10 feet wide and 26 feet long. How many square feet of grass do you need to plant if you want to cover the entire yard?<br />