Question

answer should be 70 how?​

Answer 1

Answer:

x + x + 40 = 180 (Angle sum property of triangle)

2x = 180 - 40

2x = 140

x = 70

Answer 2

Answer:

Step-by-step explanation:

It could possible if this triangle is isosceles.

So,

⇒ x + x + 40 = 180

⇒ 2x + 40 = 180

⇒ 2x = 180 - 40

⇒ 2x = 140

⇒ x = 140/2

⇒ x = 70

∴ Value of x is 70°