Find the area of the triangle formed by the points located at (5, 2), (-9, -3) and (-3, -5).
সমাধান
সঠিক উত্তর: Option B
(5,2),(-9,-3) এবং (-3,-5) বিন্দুগুলো দ্বারা গঠিত ত্রিভুজের ক্ষেত্রফল
=1/2 । 5 2 1।
। -9 -3 1।
।-3 -5 1।
=1/2 [5{-3-(-5)}+(-9){(-5)-2}+(-3){2-(-3)}]
=1/2 [5(-3+5)-9(-5-2)-3(2+3)]
=1/2 (10+63-15)
=29 বর্গ একক
=1/2 । 5 2 1।
। -9 -3 1।
।-3 -5 1।
=1/2 [5{-3-(-5)}+(-9){(-5)-2}+(-3){2-(-3)}]
=1/2 [5(-3+5)-9(-5-2)-3(2+3)]
=1/2 (10+63-15)
=29 বর্গ একক
