Please answer fast!! If angles of a triangle are in the ratio 2 : 3 : 4. Find the value of the largest angle.
(a) 120°
(b) 140°
(c) 60°
(d) 80°

(d)

Step-by-step explanation:

sum the parts of the ratio, 2 + 3 + 4 = 9 parts

Divide 180° by 9 to find the value of one part of the ratio

180° ÷ 9 = 20° ← value of 1 part of ratio , then

4 parts = 4 × 20° = 80° ← largest angle

56.6

step-by-step explanation:

the ratio of the perimeters is equal to the scale.

the ratio of the areas is equal to the square of the scale.

34 / 20 = k

a / 19.6 = k²

substituting:

a / 19.6 = (34 / 20)²

a = 19.6 (34 / 20)²

a ≈ 56.6

the answer is a i belaeve atleast thats what my calculator just gfave me

step-by-step explanation: