Plot the points P(1,5), Q(3,2), R(1,-1) and S(-1,2) on a xy plane and join them in order. Also find its area
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Step-by-step explanation:
area=area of ∆PQR + area of ∆PSR
= 1/2×PR×QQ'+1/2×PR×SQ'
=1/2(5+1)(3-1)+1/2(5+1)(1+1)
=1/2×6×2+1/2×6×2
=6+6
=12
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Step-by-step explanation:
Plot the points P(1,5), Q(3,2), R(1,-1) and S(-1,2) on a xy plane and join them in order. Also find its area
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