Answer:
14.14 ft
Step-by-step explanation:
In an isosceles triangle, the altitude and median is same. So the height divides the base AB equally such that AD = DB = 10, if the height is CD. So using Pythagoras theorem, we can find the hypotenuse AC in triangle ADC.
h² = b² + a²
AC² = AD² + CD²
AC² = 10² + 10²
AC² = 100 + 100
AC² = 200
AC = √200
AC ≈ 14.14 ft
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