+0  
 
0
28
1
avatar

Suppose P, Q, and R are points in the plane such that PQ = 1.8, PR = 8.2, and angle PQR = 90 degrees. What is the perimeter of angle PQR?

Guest Nov 11, 2017
Sort: 

1+0 Answers

 #1
avatar+78762 
+1

PR is the hypotenuse of a right triangle  and PQ is a leg

 

So    √ [ PR^2 - PQ^2 ]  = QR  =  √  [ 8.2^2  - 1.8^2 ]  =  √ 64  = 8

 

So.........the perimeter of PQR  ≈    8.2 +  8  + 1.8  =  18 units 

 

 

cool cool cool

CPhill  Nov 11, 2017

4 Online Users

avatar
We use cookies to personalise content and ads, to provide social media features and to analyse our traffic. We also share information about your use of our site with our social media, advertising and analytics partners.  See details