Question

What is the value of x?

Answer 1

THIS IS A RIGHT & isosceles  triangle: A = 90. B = 45 THEN ANGLE C =45

THEN AB = AC = 4√2

APPLY PYTHAGORAS: BC² =AB² +  AC²

 ===> X² = (4√2)² + (4√2)² ==>16.2 +16.2 = 64
X² 64 & X =√64  ==> X = 8