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2013send the area of a triangle whose vertices are63).(-3,5) and (4,-2) () (at, 2at). (at, 2at) and (m (2,c + a),(a, c) and (-a,c-a)delatorals the coordinates of whose vertices are (6,3).(-3.5) |
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Answer» (6, 3), (-3,5)(4,-2)=√(6)(-3)-(3)(5)=V-18-15=V-33; (-3,5)(4,-2)=V4(-3)-(-2)(5)=V-12+10=V-2; (4,-2)(6,3)=V(2)^2-(5)^2=V4-25=V-21 (6, 3), (-3, 5), (4, -2); V( -3-6)^2+(5-3)^2=V-81+4= V77_________________(1), (-3, 5)(4,-2)=V(7)^2+9=V58______(2) (4 -2)(6,3)=V(2)^2+(5)^2=v4+25=V29; V29+58+77=V164=41 |
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