Respuesta :

Answer:

right angles.B

Step-by-step explanation:

let x and ybe angles.

x+y=180

also x=y

x+x=180

2x=180

x=180/2=90

y=x=90

wegnerkolmp2741o

Answer:

right angles

Step-by-step explanation:

Let x be the angle

X is also the other angle since they are equal

Supplementary means they add to 180

x+x = 180

2x = 180

Divide by 2

2x/2 = 180/2

x= 90

They are right angles