Question

please solve and tell the correct value of 'x'​

Answer 1

Answer:

angle d +angle a+ angle b=180 by angle sum property 70+30+angle b=180

100+angle b=180

angle b=180-100=80

Step-by-step explanation:

by exterior angle property angle DBC is 100

by exterior angle property 40+100=x

then value of x=140

Answer 2

Answer:-

x = 140°

Step-by-step explanation:-

To find:-

• Value of x

Solution:-

∠DBC = ∠A + ∠B                [∵Exterior angle = Sum of opposite interior angles]

⇒ ∠DBC = 70° + 30°

⇒ ∠DBC = 100°

x = ∠DBC + ∠C                  [∵Exterior angle =  Sum of opposite interior angles]

x = 100° + 40°

x = 140°

Answer⇒ x = 140°

I hope that this helped you :-)