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10. Seven lengths of wood are needed to make this gate. Find the total length of wood needed, giving your answer in metres, correct to one decimal place. Chapter 23 Trigonometry -2.5m- 1.5m​

10 Seven lengths of wood are needed to make this gate Find the total length of wood needed giving your answer in metres correct to

Answer :

The total length of wood needed is 15. 9 meters

How to determine the total length

The formula for calculating the perimeter of a rectangle is expressed with formula;

P = 2(l + w)

Such that the parameters given in the formula are;

  • P is the perimeter of the rectangle.
  • l is the length of the rectangle.
  • w is the width of the rectangle.

Then, we have;

Width = 2. 5m

Length = 1. 5m

Total length = 2(1.5) + 4(2.5) = 3 + 10 = 13 + x meters

Using the Pythagorean theorem

x² = 6. 25 + 2. 25

x = 2. 92

Total length = 13 + 2. 92 = 15. 9 meters

Learn about rectangles at: https://brainly.com/question/25292087

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