In a triangle ABC, AB=AC. D is any point on BC. Show that AB2-AD2=BD.CD
1. Show that the area of a rhombus on hypotenuse of a right angled triangle, with one of the angles as 60 is equal to the sum of areas of rhombuses with one of their angles as 60 drawn on others sides.
2. BO and CO bisect angle B and angle C of triangle ABC. AO produced meets BC at P. Show:-
· AB*OP=BP*AO
· AC*OP=CP*AO
· AB*PC=AC*BP
· AP bisects angle BAC.
side ab and ac and median ad of a triangle abc r respectively proportional to sides pq and pr and median pm of another triangle pqr prove that triangle abc similar to pqr explain step by step it plz
Two poles of height "a" m. and "b"m. are "p" m apart. Proove that the point of intersection of lines joining the tops of the poles to bottom of the opp. poles is given by :- h = (a * b) / (a+b) m
PLZ. ANSWER EVEN A WEEK PASSED BUT NO ANS. FROM MERITNATION
ABC & BDE R THE 2 EQUILATERAL TRIANGLES SUCH THAT D IS THE MID POINT OF BC .RATIO OF THE AREAS OF TRIANGLES ABC & BDE
If BL and CM are medians of a triangle ABC right angled at A, then prove that 4( BL2 + CM2 ) = 5 BC2
In triangle ABC, DE is parallel to BC and AD:DB=5:4. diagonals DC and BE intersect at F. Find Area(triangle DEF) / Area(triangle CFB).
In triangle ABC, AD is a median . Prove that AB2 + AC2 = 2(AD2 + BD2)
In a quadrilateral ABCD, Angle B=90 degree, AD2=AB2+BC2+CD2.
Prove that Angle ACD=90 degree.
prove that the sum of the squares of the diagonals of a parallelogram is equal to the sum of the squares of its sides
If A be the area of a right triangle and b one of the sides containing the right angle, the length of the altitude on the hypotenuse is__________.
a) 2A/√(b2+2A2) b) 2Ab/√(b4+4A2) c)2Ab2/√(b3+4A2) d)2A2b/√(b4+3A2)
In triangle ABC if AD is the median then show that AB2 + AC2 = 2(AD2 + BD2)
D is the midpoint of side BC of a triangle ABC.AD is bisected at a point E and BE produced cuts AC at the point X.Prove that - BE : EX = 3:1
In triangle ABC, angle A=60. Prove that BC2=AB2+AC2- AB.AC
Prove that the area of an equilateral triangle described on one side of a square is equal to half the area of the equilateral triangle described on one of its diagonals.
If the diagonals of a quadrilateral divide each other proportionally , prove that itAskis a trapezium
In a triangle ABC, AB=AC. D is any point on BC. Show that AB2-AD2=BD.CD
1. Show that the area of a rhombus on hypotenuse of a right angled triangle, with one of the angles as 60 is equal to the sum of areas of rhombuses with one of their angles as 60 drawn on others sides.
2. BO and CO bisect angle B and angle C of triangle ABC. AO produced meets BC at P. Show:-
· AB*OP=BP*AO
· AC*OP=CP*AO
· AB*PC=AC*BP
· AP bisects angle BAC.
side ab and ac and median ad of a triangle abc r respectively proportional to sides pq and pr and median pm of another triangle pqr prove that triangle abc similar to pqr explain step by step it plz
Two poles of height "a" m. and "b"m. are "p" m apart. Proove that the point of intersection of lines joining the tops of the poles to bottom of the opp. poles is given by :- h = (a * b) / (a+b) m
PLZ. ANSWER EVEN A WEEK PASSED BUT NO ANS. FROM MERITNATION
ABC & BDE R THE 2 EQUILATERAL TRIANGLES SUCH THAT D IS THE MID POINT OF BC .RATIO OF THE AREAS OF TRIANGLES ABC & BDE
If BL and CM are medians of a triangle ABC right angled at A, then prove that 4( BL2 + CM2 ) = 5 BC2
In triangle ABC, DE is parallel to BC and AD:DB=5:4. diagonals DC and BE intersect at F. Find Area(triangle DEF) / Area(triangle CFB).
In triangle ABC, AD is a median . Prove that AB2 + AC2 = 2(AD2 + BD2)
In a quadrilateral ABCD, Angle B=90 degree, AD2=AB2+BC2+CD2.
Prove that Angle ACD=90 degree.
prove that the sum of the squares of the diagonals of a parallelogram is equal to the sum of the squares of its sides
If A be the area of a right triangle and b one of the sides containing the right angle, the length of the altitude on the hypotenuse is__________.
a) 2A/√(b2+2A2) b) 2Ab/√(b4+4A2) c)2Ab2/√(b3+4A2) d)2A2b/√(b4+3A2)
In triangle ABC if AD is the median then show that AB2 + AC2 = 2(AD2 + BD2)
D is the midpoint of side BC of a triangle ABC.AD is bisected at a point E and BE produced cuts AC at the point X.Prove that - BE : EX = 3:1
In triangle ABC, angle A=60. Prove that BC2=AB2+AC2- AB.AC
Prove that the area of an equilateral triangle described on one side of a square is equal to half the area of the equilateral triangle described on one of its diagonals.
If the diagonals of a quadrilateral divide each other proportionally , prove that itAskis a trapezium