Asked by Mikal
two lines y=-2x+6 and y=1.5x+1 intersect. What is the size of the acute angle at the intersection?
Ive got 59.4 degrees. Any confirmation/slight alteration?
Ive got 59.4 degrees. Any confirmation/slight alteration?
Answers
Answered by
Reiny
are you using the formula found here
http://planetmath.org/encyclopedia/AngleBetweenTwoLines.html ?
then the two slopes are 1.5 and -2
and tanß = │(-2-1.5)/(1+(-2)(1.5))│
tanß = 1.75
ß = 60.26º
http://planetmath.org/encyclopedia/AngleBetweenTwoLines.html ?
then the two slopes are 1.5 and -2
and tanß = │(-2-1.5)/(1+(-2)(1.5))│
tanß = 1.75
ß = 60.26º
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