Question

find the unknown angle​

Answer 1

Answer:

138 +X = 180... angle in Linear pair

therefore X= 180-138

X= 42...

MARK AS BRAINLIST...

Answer 2

Step-by-step explanation:

by exterior angle property,

6a+13+4a-5= 138°

=> 10a+8 = 138

=> 10a = 130 => a= 13

6a+ 13 = 6*13 +13 = 91°

4a-5= 4*13-5=47°

and another angle = 180°-138°=42°