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iris [78.8K]
3 years ago
15

PLEASE HELP ME IF YOU CAN! please tell me how you got the answer thank you!

Mathematics
1 answer:
Temka [501]3 years ago
3 0
3sqrt(2)

You can either use Pythagorean theorem or special triangle proportions to find the side that is parallel to z. Since in a 45-45-90 degree triangle, the hypotenuse is the leg times the square root of 2, and the hypotenuse is 3, we know that the leg is 3/sqrt(2) which is equal to 3 sqrt(2) / 2. Since z is twice this length, we know that z is equal to 2 x 3sqrt(2)/2 = 3sqrt(2)
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