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In a right triangle, if one side measures 3 and the other side measures 4, what's the length of the hypotenuse (the longest side, the one opposite the right angle)? - Quora

Why can't we use Heron's formula for triangles when calculating the area of any triangle, even if it has three different types (right, obtuse, acute) angle measures? - Quora

In a right angled triangle, the sum of two sides is 5 and one of the angles is 50 degrees. How do I solve it? - Quora

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finding angle when given three sides trigonometry