Question

The triangle below is isosceles. Find the length of side x in simplest radical form with

a rational denominator.
x
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s
attempt 1 out of 2
CAN SOMEONE HELP ME PLS

Answer 1

x=2*sqrt(5)

Explanation:

Since the triangle is isosceles, the other side (not x) is sqrt(10). Using Pythagoras, we have 10+10=x^2, x=2*sqrt(5)