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