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Sep 1, 2014
In an equilateral Δ ABC, the side BC is trisected at D. Prove that 9AD2 = 7AB2
Swetcha
Aug 9, 2013
D,E,F are respectively th mid-points of the sides AB,BC and CA of ΔABC. Find the ratios of the area of ΔDEF and ΔABC.
Vaishali mathur Mathur
Aug 18, 2013
Prove that the sum of the squares of the diagonals of parallelogram is equal to the sum of squares of its sides.
Tonykuttan
Aug 27, 2014
Prove that the area of the equilateral triangle described on the side of a square is half the area of the equilateral triangle describes on its diagonal.
Harshit
Aug 7, 2013
Prove that the sum of squares of of the sides of a rhombus is equal to the sum of its squares of its diagonals
Adithyan Sanal
Apr 14, 2015
Prove that in a triangle, if the square of one side is equal to the sum of the squares of the other two sides, then the angle opposite to the first side is a right angle.
Gajaanan Muley
Aug 10, 2013
AD is an altitude of an equilateral triangle ABC. On AD as a base,another equilateral triangle ADE is constructed.Prove that area(ADE):area(ABC)=3:4.
Nitin Rajda Rajda
Sep 23, 2013
Two trees of heights a and b are p meters apart. Prove that the height of the point of intersection of the lines joining the top of each tree to the foot of the opposite tree is gien by ab/a+b m.
Rohit
Sep 6, 2014
Two poles having heights of 6m and 11m stand vertically on a plane ground. if the distance between their feet is 12m, Find the distance between their tops.
Malavika Ramesh
Sep 18, 2014
in a triangle ABC right angled at A, AB=5 cm and AC=12 cm. If AD perpendicular BC then find AD.
Pranav Satti
Sep 1, 2014
In an equilateral Δ ABC, the side BC is trisected at D. Prove that 9AD2 = 7AB2
Swetcha
Aug 9, 2013
D,E,F are respectively th mid-points of the sides AB,BC and CA of ΔABC. Find the ratios of the area of ΔDEF and ΔABC.
Vaishali mathur Mathur
Aug 18, 2013
Prove that the sum of the squares of the diagonals of parallelogram is equal to the sum of squares of its sides.
Tonykuttan
Aug 27, 2014
Prove that the area of the equilateral triangle described on the side of a square is half the area of the equilateral triangle describes on its diagonal.
Harshit
Aug 7, 2013
Prove that the sum of squares of of the sides of a rhombus is equal to the sum of its squares of its diagonals
Adithyan Sanal
Apr 14, 2015
Prove that in a triangle, if the square of one side is equal to the sum of the squares of the other two sides, then the angle opposite to the first side is a right angle.
Gajaanan Muley
Aug 10, 2013
AD is an altitude of an equilateral triangle ABC. On AD as a base,another equilateral triangle ADE is constructed.Prove that area(ADE):area(ABC)=3:4.
Nitin Rajda Rajda
Sep 23, 2013
Two trees of heights a and b are p meters apart. Prove that the height of the point of intersection of the lines joining the top of each tree to the foot of the opposite tree is gien by ab/a+b m.
Rohit
Sep 6, 2014
Two poles having heights of 6m and 11m stand vertically on a plane ground. if the distance between their feet is 12m, Find the distance between their tops.
Malavika Ramesh
Sep 18, 2014