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Let P be the point (0,5),  let Q be the point (6,9), and let R be the point (10,0). Determine the area of triangle PQR.

 Nov 7, 2020
 #1
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Let P be the point (0,5),  let Q be the point (6,9), and let R be the point (10,0). Determine the area of triangle PQR.

 

Hello Guest!

 

\(A=6\cdot 5+\frac{6\cdot (9-5)}{2}+\frac{(10-6)\cdot 9}{2}-\frac{10\cdot 5}{2}\)

\(A=30+12+18-25\)

\(A=35\)

 

 The area of triangle PQR is 35.

laugh  !

 Nov 7, 2020

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