P is any point on the circumference of the circumcircle of `DeltaABC`. H is the orthocentre, M is the midpoint of PH and D is the midpoint of BC. Then

In triangleABC , if D is the midpoint of BC and E is the midpoint of AD then ar(triangleBED) = ?

.Point M is the midpoint of Seg AB.If AB=8 then find the length of AM.

The area of Delta ABC is 44 cm^(2) . If D is the midpoint of BC and E is the midpoint of AB, then the area ( in cm^2 ) of DeltaBDE is :

In Figure,if AB||DC and P is the mid- point BD, prove that P is also the midpoint of AC

In triangle ABC,D is the midpoint of BC and AD is perpendicular to AC. Then cos A.cos C=

P is any point on the side BC of a triangle ABC . P is joined to a. If D and E are the midpoints of the sides AB and AC respectively and M and N are the midpoints of BP and CP respectively then quadrilateral DENM is

If P is the circumcentre of an acute angled triangle ABC with circumredius R. D is the midpoint of BC. Show that the perimetre of triangleABC = 2R(sinA + sinB + sinC) .