Question

20
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0) What will be the length of the diagonal of a rectangle of sides 6 m and 8 m?

Answer 1

Another way to approach this is realize that 3-4-5 is a Pythagorean triple, since we know the diagonal makes a right triangle with the rectangle sides. We can use this and the given side lengths to create a proportion.

5 is always the length of the hypotenuse and 3 is always the smallest side, so we can set our proportion like this.

3 / 6 = 4 / 8 = 5 / x

where x is the hypotenuse of the triangle we want. Notice the proportion equals 1/2 on the left and middle sides. That means they are equal. So we can use this to create an equation to solve for x.

5 / x = 1 / 2

Cross-multiply, to get

x = 10

The diagonal is 10 m.

Answer 2

Answer:

i think we can do it by PGT...

36 plus 91 ka whole underroot

121 underrot

11 is the right answer