Question

find x i will mArk you brainleist​

Answer 1

Answer:

x= 15°

Step-by-step explanation:

as BC=AB

<C= <A= 3x

So 3x+3x+90= 180° (angle sum property of triangle)

6x=90°

x= 90/6= 15°

Answer 2

Answer:

x = 15 degree

Step-by-step explanation:

Triangle ABC is an iscoceles triangle as AB = CA.

Therefore, Angle 3x = Angle CAB = 45 degree.

A/C to the problem,

3x + 45 (angle CAB) + 90 = 180

3x + 45 = 90

3X = 45

X = 45/3

X = 15 degree