Question

triangle ABC is an isosceles triangle in which C angle C is equal to 90 degree if BC 4 cm find a b​

Answer 1

Step-by-step explanation:

$\triangle \: ABC \: is \: an \: isosceles \: \triangle \: where \: \\ \angle C \: = 90 \degree \: and \: AB \: is \: its \: hypotenuse. \\ AC = BC = 4 \: cm \\ {AB}^{2} = {AC}^{2} + {BC}^{2} \\ {AB}^{2} = {4}^{2} + {4}^{2} \\ {AB}^{2} \: = 16 + 16 \\ {AB}^{2} \: = 2 \times 16 \\ AB = \sqrt{2 \times 16} \\ AB = 4\sqrt{2} cm$