Question

triangle if one angle
DE = EF. One of the equal angles is 50°. Find angles x, y and
F
so
Fig. 16.20​

Answer 1

Answer:

let DF = EF is isosceles triangle

so, one angle is 50 °

then 50 + 50 = 100°

we know that the sum of triangle = 180°

so 180°- 100°= 80°