{4} \left(45^{\circ}\right)\) A right angled isosceles triangle has two equal angles of 45°. By taking the two equal side lengths as 1, then by Pythagoras' theorem the hypotenuse is \(\sqrt{2}\). The ...
Area of a Right Triangle = A = 1/2 × Base × Height Area of an Equilateral Triangle = A = (√3)/4 × side 2 ...
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