Question

What is the value of x?​

Answer 1

Answer:

(a) 70°

Step-by-step explanation:

LA=x

LB= 50°

LC= 60°

using angle sum property of triangles,

the sum of all the angles of a triangle is 180°

therefore, LA+LB+LC=180°

x+50+60=180

x= 180-110

x= 70°

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Answer 2

Answer:

X = 70°

Step-by-step explanation:

in a triangle sum of all interior angels = 180°

in ∆ABC, <A+ <B+< C = 180°

X + 50° + 60°= 180°

X + 110°= 180°

X = 180° - 110

X = 70°

the value of x = 70°