HARD
NTSE Stage II
IMPORTANT
Earn 100

Let G be the centroid of the triangle ABC in which the angle C is obtuse. Let AD and CF are the medians from A and C on the sides BC and AB respectively. If the four points B,D,G and F are concyclic, then BCAC

50% studentsanswered this correctly

Important Questions on Triangles

HARD
NTSE Stage II
IMPORTANT
Let ABC be a triangle with sides a,b,c. Then lengths of medians of the triangle formed by the medians of the triangle ABC are
HARD
NTSE Stage II
IMPORTANT

Let ABCD be a square of side 20 cm. The area of the square PQRS (in cm2) interior to ABCD, shown in the figure is

Question Image

HARD
NTSE Stage II
IMPORTANT
Let D be a point on the side BC of a triangle ABC such that ADC=BAC. If AC=21 cm, then the side of an equilateral triangle whose area is equal to the area of the rectangle with sides BC and DC is
MEDIUM
NTSE Stage II
IMPORTANT

In the given figure, ABCD is a rectangle. Then the area of the shaded region is

Question Image

HARD
NTSE Stage II
IMPORTANT

In quadrilateral ABCD, ABC+DCB=90° and ADEF is a square constructed on side AD in the exterior of the quadrilateral ABCD. If BC=10 cm,AC=9 cm and BD=8 cm, then the area (In cm2) of the square ADEF lies between.