# Notes Over 3.2 Equations and Formulas When using a formula, you must first know what each variable represents. Example The formula for the area of a square.

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Notes Over 3.2 Equations and Formulas When using a formula, you must first know what each variable represents. Example The formula for the area of a square is A = s 2. What do A and s represent in this formula? A represents the area of the square s represents the side of the square Find the area of a square with sides of 6 centimeters.

Notes Over 3.2 Equations and Formulas 1.The formula for the area of a rectangle is A = lw. What do A, l and w represent in this formula? A represents the area of the rectangle l represents the length of the rectangle 2.Find the area of a rectangle with a length of 9 inches and a width of 7 inches. w represents the width of the rectangle

Notes Over 3.2 Equations and Formulas 3.The formula for the area of a parallelogram is A = bh. What do A, b and h represent in this formula? A represents the area of the parallelogram b represents the base of the parallelogram 4.Find the area of a parallelogram with a base of 13 millimeters and a height of 20 millimeters. h represents the height of the parallelogram

Notes Over 3.2 Equations and Formulas 5.The formula for the distance traveled is D = rt. What do D, r and t represent in this formula? D represents distance r represents rate 6.Find the distance traveled if the rate is 48 miles and the time is 2.5 hours. t represents time

Notes Over 3.2 Equations and Formulas 7.The formula for the perimeter of a rectangle is p = 2l + 2w. What do p, l and w represent in this formula? p represents perimeter l represents length 8.Find the perimeter of a rectangle if the length is 16 centimeters and the width is 10 centimeters. w represents width

Notes Over 3.2 Extra Practice Worksheet 3.2 Pg. 3-14, Lesson 3.2 #5-30

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