Question

if a triangle DEF angle F=6E=5(D+E) FINd all angles

Answer 1

Answer:

F= 6E

ALSO ; F= 5D+5E

Equating both

6E= 5D+5E

E=5D

Thus ;

F=6E = 6(5D)= 30D

since sum of all the angles of a ∆ is 180°

thus

D + E + F = 180°

D + 5D + 30D = 180°

36D = 180°

D = 5°

E = 25°

F = 150°