Question

In ΔXYZ, <X= <Y. IF <Z=40°,find <X and <Y.

Answer 1

Hi sup!

In ∆XYZ,
Angle X = Angle Y
Angle Z = 40°

Let's assume Angle X be a.
Then,
Automatically,
Angle Y will also be a.

We already know that,
The sum of all angles of a Triangle = 180°

So,
a+a+40°=180°
2a + 40°= 180°
2a = 180° - 40°
2a = 140°
a = 140°/2

Finally,
a = 70°

So,
Angle X = 70°
Angle Y = 70°

Angle X = 70° = Angle Y

Hope it helps!

Answer 2

in triangle XYZ, 
<x+<y+<z=180
<x+<x+40=180 (<x=<y)
2<x=180-40
2<x=140
<x=70
so , <Y= 70 (<x=<y)
<x=70 and <y=70 answer
hope this is helpful to u...