the length of a rectangle is 5 cm more than twice the width. the perimeter of the rectangle is 34 cm. find the dimensions of the rectangle
You can find the perimeter of a triangle by using this formula: P = 2L + 2W
If the length is 5 cm more than twice the width, you have the equation: L = 5 + 2W
Substituting 5 + 2W for L into the first equation: P = 2(5 + 2W) + 2W
Since P = 34 34 = 2(5 + 2W) + 2W
34 = 10 + 4W + 2W
34 = 10 + 6W
24 = 6W
4 = W
If W = 4, the L = 5 + 2W ---> L = 5 + 2(4) = 13
You can find the perimeter of a triangle by using this formula: P = 2L + 2W
If the length is 5 cm more than twice the width, you have the equation: L = 5 + 2W
Substituting 5 + 2W for L into the first equation: P = 2(5 + 2W) + 2W
Since P = 34 34 = 2(5 + 2W) + 2W
34 = 10 + 4W + 2W
34 = 10 + 6W
24 = 6W
4 = W
If W = 4, the L = 5 + 2W ---> L = 5 + 2(4) = 13