The perimeter of a rectangle field is 320cm. Find the breath if the length is 70cm
B = breadth
L = length
P = Perimeter
P = 2 L + 2 B
P = 2 ( L + B )
320 = 2 ( L + 70 )
Divide both sides by 2
160 = L + 70
Subtract 70 to both sides
90 = L
L = 90 cm
To find the breath of the rectangle field, we need to use the formula for the perimeter of a rectangle, which is given by the equation:
Perimeter = 2(length + breath)
Given that the perimeter is 320cm and the length is 70cm, we can substitute these values into the equation and solve for the breath.
320cm = 2(70cm + breath)
Divide both sides by 2:
160cm = 70cm + breath
Subtract 70cm from both sides:
90cm = breath
Therefore, the breath of the rectangle field is 90cm.
To find the length of the rectangle, we will use the formula for the perimeter of a rectangle: P = 2(l + b), where P is the perimeter, l is the length, and b is the breadth.
Given that the perimeter is 320 cm and the length is 70 cm, we can plug these values into the formula:
320 = 2(70 + b)
Next, we can simplify the equation:
320 = 140 + 2b
Subtract 140 from both sides:
320 - 140 = 140 + 2b - 140
180 = 2b
Divide both sides of the equation by 2:
180/2 = 2b/2
90 = b
Therefore, the breadth of the rectangle is 90 cm.
Sorry, my mistake.
That is correct answer.
B = breadth
L = length
P = Perimeter
P = 2 L + 2 B
P = 2 ( 70 + B )
320 = 2 ( 70 + B )
Divide both sides by 2
160 = 70 + B
Subtract 70 to both sides
90 = B
B = 90 cm