Question

please answer this question correctly please​

Answer 1

Answer:

a+b=115°

Step-by-step explanation:

in the ∆

let the unknown angle be x

(60+55+x)°=360(sum of all angles of a triangle)

115°+x=360°

x=360-115

x= 65°

now,

as we know sum of linear pair=180°

so,

x+a+b=180°

65°+a+b=180

a+b= 180-65 = 115°

hope it's clear.