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anonymous
 one year ago
anybody in connexus that can help me?
anonymous
 one year ago
anybody in connexus that can help me?

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welshfella
 one year ago
Best ResponseYou've already chosen the best response.1what is your question?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0i need help on lesson 8. "what is the perimeter of triangle PQR with the vertices P(2,9) Q(7,3) R(2,3) in the coordinate plane?"

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1you need to find the distances between the points of the triangle the distance formula for 2 points in the coordinate plane is d = sqrt([( y2y1)^2 + (x2  x1)^2 ] where the 2 points are (x1,y1) and (x2,y2)

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1so the distance between the points P and Q is sqrt [ (9  (3))^2 + ( 2  7)^2] = sqrt ( 144 + 81) = sqrt 225 = 15

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1now you need to find the lengths of the other 2 sides QR and RP by the same method and then the perimeter = sum of these 3 lengths
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