A park maintenance person stands 19 m from a circular monument. If you assume her lines of sight form tangents to the monument and make an angle of 34°, what is the measure of the arc of the monument that her lines of sight intersect?

146
124
112
56

Question

A park maintenance person stands 19 m from a circular monument. If you assume her lines of sight form tangents to the monument and make an angle of 34°, what is the measure of the arc of the monument that her lines of sight intersect?
 		
	146
	124
	112
	56

18jonea · Answer

@welshfella 
i think it is either a or d

welshfella · Answer

sorry cant help with arcs - never did them in school I'll have to educate myself in arcs

18jonea · Answer

@amistre64

amistre64 · Answer

A park maintenance person stands 19 m from a circular monument. 

If you assume her lines of sight form tangents to the monument and make an angle of 34°, what is the measure of the arc of the monument that her lines of sight intersect?

its an average ....

amistre64 · Answer

|dw:1431274172334:dw|

x = (a+b)/2

BUT, one of these angles is "negative" with respect to the angle.  what is a negative arc?

|dw:1431274243877:dw|

amistre64 · Answer

but it might be simpler than this ... the sum of the angles of a quadralateral add up to what?

|dw:1431274319037:dw|

the tangents take up 90 and 90,  so the remaining 2 angles add up to what?