Webb29 mars 2024 · Transcript. Example 12 Find the area of a triangle formed by the points A(5, 2), B(4, 7) and C (7, – 4). Area of triangle ABC = 1/2 [ x1(y2 – y3) + x2(y3 – y1) + x3(y1 – y2) ] Here x1 = 5 , y1 = 2 x2 = 4 , y2 = 7 x3 = 7 , y3 = −4 Putting values Area of triangle ABC = 1/2 [ 5(7 – (−4)) + 4(−4 – 2 ) + 7(2 − 7) ] = 1/2 [ 5(7 + 4) + 4(−6 ) + 7(−5) ] = 1/2 [ 5(11) + 4(−6 ... Webb10 aug. 2024 · A = (2,1,3) B = (5,0,5) C = (-4,3,-1) To prove – A, B and C are collinear. Formula to be used – If P = (a,b,c) and Q = (a’,b’,c’),then the direction ratios of the line PQ …
Prove that the points (0, – 1, – 7), (2, 1, – 9) and (6, 5, – 13) are ...
WebbIf the points A(2,9), B(a,5) and C(5,5) are the vertices of a Δ ABC right angled at B, then find the values of a and hence the area of Δ ABC. Q. The point A ( 2 , 3 ) , B ( 4 , − 1 ) , C ( − 1 , … Webb27 aug. 2024 · If the points A (2, 9), B (a, 5) and C (5, 5) are the vertices of a ABC right angled at B, then find the values of a and hence the area of ΔABC. If the points A (2, 9), B … how to remove voice activation on android
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Webb11 apr. 2024 · THIS STORY IS UNDER EMBARGO UNTIL TUESDAY APRIL 11, 2024 AT 9 AM ET. The IMF announced today (Tuesday, April 11, 2024) in the World Economic Outlook’s press briefing that the baseline forecast for global output growth is 0.1 percentage point lower than predicted in the January 2024 WEO Update, before rising to 3.0 percent in 2024. WebbIf A 4,9, B 2,3 and C 6,5 are the vertices of Δ ABC, then the length of median through C isa 5 units[ b 10 units c 25 units d 10 units [CBSE 2014] ] Login. Study Materials. NCERT Solutions. NCERT Solutions For ... Let CD be the median of ∆ABC through C. Then, D is the mid-point of AB. Using mid-point formula, coordinates of midpoint = (x 1 ... Webb22 mars 2024 · Three points A, B, C are collinear if direction ratios of AB and BC are proportional. AB A (2, 3, −4) B (1, −2, 3) Direction ratios = 1 − 2, −2 − 3, 3 − (−4) = −1, −5, 7 … how to remove vocals using wavepad