Question

please solve it it's urgent

Answer 1

Step-by-step explanation:

Let angles of a triangle be ∠A,∠Band∠C.

∴ ∠A=2X,∠B=4Xand∠C=3x

In ΔABC, ∠A+∠B+∠C=180∘

[sum of all the angles of a triangle is 180∘]

⇒ 2x+4x+3x=180

⇒ 9x=180∘

∴ x=180∘9=20

∴ ∠A=2x=2×20∘=40

∠B=4x=4×20∘=80∘

and ∠C=3x=3×20∘=60∘

Hence, the smallest angle of a triangle is40∘