Question

class 9 cbse
chapter 6 lines and angles.
please give me answer​

Answer 1

Answer:

b)40 degree as the total angles of a triangle is 180 degree Hope you can understand the calculations

Step-by-step explanation:

Please mark me as brainliest

Answer 2

Answer:

Step-by-step explanation:

LET THE ANGLES OF A TRIANGLE BE 2X, 3X AND 4X.

ATQ, 2X+3X+4X=180(ANGLE SUM PROPERTY)

         9X= 180 DEGREES

          X=20 DEGREES

SMALLEST ANGLE=  20 *  2

                                =   40 DEGREES