Question

Plz answer my question pzl I’ll mark u as BRAINLIEST and this is scert maths class8th

Answer 1

Answer:

all the sides of a triangle sum up as 180°

Answer 2

Answer:

<R = 80 degree

Step-by-step explanation:

Angle sum property :

60+40+<R = 180

100+<R = 180

<R = 180-100

<R = 100

Hope it is useful

Please Mark it as the Brainliest !!!