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Flnd the value of x for the triangle or rectangle. Then find the length of the sides of the triangle or rectangle.Q1: Perimeter = 18 meters Q2: Perimeter = 23 feet

Sagot :

The perimeter of a rectangle is given by:

P = 2w + 2h

Where:

w = width = 2x

h = height = x

P = 18

Replacing the data into the equation:

18 = 2(2x) + 2(x)

18 = 4x + 2x

18 = 6x

Solving for x:

x = 18/6

x= 3

Therefore:

w = 2(3) = 6m

h = 3m

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P = x + 2x + (x + 3)

23 = 3x + x + 3

23 = 4x + 3

Solving for x:

23 - 3 = 4x

20 = 4x

20/4 = x

5 = x

Therefore its sides are:

x = 5 ft

2x = 2(5) = 10ft

x + 3 = 5 + 3 = 8ft