Answered

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a triangle has side lengths of 11cm and 9cm. which could be the value of the third side, 20cm or 15cm?

Sagot :

You would be looking to find the hypotenuse, being that both of the options are more than the values of the sides you gave
The equation is a^2+b^2=c^2
11^2+9^2=c^2
121+81=c^2
202=c^2
Now you need to find the square root of 202
So the exact answer would be √202
An approximate answer to the nearest hundredth would be 14.21
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