Question

A formula to find the angle measures of an isosceles triangle is shown. 180=2x+y Which equation can be used to find x?

A.
`x=(180-y)/(2)`
B.
`x=(180+y)/(2)`
C.
`x=90-y`
D.
`x=90+y`

Answer 1

180 = 2x + y

-y = -y

180 - y = 2x

/2 = /2

180 - y /2 = x

The answer is A