Question

In the given figure the ratio of angle BAC ratio angle ACB ratio angle CBA is 5:7:6 if angle angle CDE is 30 then the measure of angle DEC

Answer 1

Answer:

Step-by-step explanation:

Let the angles of the triangle be 5x, 6x and 7 x.

Their sum = 5x+6x+7x = 18x = 180, or x = 10

The three angles are thus 50 deg, 60 deg and 70 deg.