it says find the values of the variables the angles make a side ways X

Top middle: 100 degrees

Bottom middle: (2x+40) degrees

Left: (y+20) degrees

Right: 70 degrees

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it says find the values of the variables the angles make a side ways X

Top middle: 100 degrees

Bottom middle: (2x+40) degrees

Left: (y+20) degrees

Right: 70 degrees

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## Answers (1)

In an x shape, the angles across from each other are "vertical angles" and equal.

2x + 40 = 100 {Top middle and bottom middle are vertical angles}

2x = 60 {subtracted 40 from both sides}

x = 30 {divided both sides by 2}

y + 20 = 70 {left and right are vertical angles}

y = 50 {subtracted 20 from both sides}

algebrahouse.com/