Question

pls i need answer fast i will mark as the brainliest
PLEASE BHAI EK GAREEB KO MADAD KARDO YAAR PLS​

Answer 1

Angles of triangle = 2a, 3a, and 4a

Sum of angles of triangle = 180°

So, according to question

=》 2a + 3a + 4a = 180°

=》 9a = 180° =》 a = 180°/9 = 20°

=》 a = 20°

Angle A, 2a = 2 × 20° = 40°

Angle B, 3a = 3 × 20° = 60°

Angle C, 4a = 4 × 20° = 80°

Let angle ACD be y

As alternate angles are equal

•°• angle ACD = angle BAC = 40°

angle ACB + angle ACD + angle DCE = 180°

(°•° linear pair)

=》80° + 40° + x° = 180°

=》120° + x° = 180°

=》x° = 180° - 120° = 60°

x = 60°