L. ABC is a triangle, right angled at B. If AB = 4 cm and BC = 5 cm. Find AC
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in the triangle, AC is the hypotenuse.
according to Pythagoras theorem,
AB² + BC² = AC²
4² + 5² = AC²
16 + 25 = AC²
41 = AC²
AC = √41
AC = 6.4 cm
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