Question

Find the angles of an isosceles triangle whose equal angles and non equal angles are in the ratio 3:4

Answer 1

Answer:

54°, 54° and 72°

Step-by-step explanation:

the angles can be 3a, 3a and 4a

total should be 180

so 10a = 180

∴ a =18

so angles are 3×18 and 4×18

two angles of 54° each and one angle of 72°

Answer 2

(3x+3x=6x)equal sides of triangle

6x+4x =180

10x=180

x=180/10

x=18

3x=54

and 3x =54

4x=72