To find the missing length or width of a rectangle, we use the formula for the area of a rectangle:
Area = Length × Width
If we know the Area and one side (either Length or Width), we can find the other side by dividing:
*
Length = Area ÷ Width
*
Width = Area ÷ Length
Let's solve each problem step-by-step.
1) Find the Length
* Given: Area = 70 ft², Width = 7 ft
* Calculation: $70 \div 7 = 10$
* The length is 10 ft.
2) Find the Length
* Given: Area = 96 yd², Width = 8 yd
* Calculation: $96 \div 8 = 12$
* The length is 12 yd.
3) Find the Width
* Given: Area = 105 in², Length = 15 in
* Calculation: $105 \div 15 = 7$
* The width is 7 in.
4) Find the Width
* Given: Area = 65 in², Length = 13 in
* Calculation: $65 \div 13 = 5$
* The width is 5 in.
5) Find the Length
* Given: Area = 48 ft², Width = 4 ft
* Calculation: $48 \div 4 = 12$
* The length is 12 ft.
6) Find the Length
* Given: Area = 176 yd², Width = 11 yd
* Calculation: $176 \div 11 = 16$
* The length is 16 yd.
7) Find the Width
* Given: Area = 112 yd², Length = 14 yd
* Calculation: $112 \div 14 = 8$
* The width is 8 yd.
8) Find the Width
* Given: Area = 18 in², Length = 9 in
* Calculation: $18 \div 9 = 2$
* The width is 2 in.
9) Find the Length
* Given: Area = 33 ft², Width = 3 ft
* Calculation: $33 \div 3 = 11$
* The length is 11 ft.
Final Answer:
1) Length = 10 ft
2) Length = 12 yd
3) Width = 7 in
4) Width = 5 in
5) Length = 12 ft
6) Length = 16 yd
7) Width = 8 yd
8) Width = 2 in
9) Length = 11 ft
Parent Tip: Review the logic above to help your child master the concept of area of rectangle worksheet.
