Respuesta :

clarch19

Answer:

x = 33°

Step-by-step explanation:

we know there are 360 degrees in a circle

we know that ∡a = 171°

we know the angle between 'x' and 'a' is a right triangle which equals 90°

put what is known into an equation:

x + 2x + 171 + 90 = 360

3x + 261 = 360

3x = 99

x = 33°

Soore

Answer:

x=33°

Step-by-step explanation:

We know, angles around a point equals 360°

And a little square represents a right angle of 90°

And angle a equals 171°

Therefore,

171°+90°+2x+x=360°

261°+3x=360°

Collect the like terms together,

3x=360°-261°

3x=99°

Divide both sides by 3

x=33°

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