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postnew [5]
2 years ago
13

Determine the length of CD. Show your work.

Mathematics
1 answer:
damaskus [11]2 years ago
7 0

The length of line CD is 20. 9

<h3>How to determine the length</h3>

Note that triangle CDY is an isosceles triangle

Using the Pythagoras theorem

Hypotenuse square = opposite square + adjacent square

Hypotenuse = line CD

opposite = 20

Adjacent = 6

Substitute into equation

Line CD^2 = 20^2 + 6^2

Line CD^2 = 400 + 36

Line CD^2 = 436

Make line CD^2 subject by find the square root of the other side

Line CD = \sqrt{436}

Line CD = 20.9

Therefore, the length of line CD is 20. 9

Learn more about Pythagorean theorem here:

brainly.com/question/231802

#SPJ1

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