Draw three ray AB,AC and AD

A vertical disc has three grooves directed along chords AB, AC and AD. Three bodies begin to slide down the respective grooves from A simultaneously. If AB > AC > AD, the respective time intervals to reach the bottoms of the respective grooves t_1, t_2 and t_3 are

Draw a parallelogram ABCD, with AB=6cm, AD=4.8 cm and angleDAB=45^(@) . Draw the perpendicular bisector of side AD and let it meet AD at point P. also, draw the diagonals AC and BD, and let them intersect at point O. join O and P. measure OP. DC=5 cm

A diver in water looks obliquely at an object AB in air. Show the path of two rays AC and AD starting from the tip of the object as it travels towards the diver in water and hence obtain the image of the object.

Draw a ray RS.

Draw a ray PQ.

Let B_1,C_1 and D_1 are points on AB,AC and AD of the parallelogram ABCD, such that vec(AB_1)=k_1vec(AC,) vec(AC_1)=k_2vec(AC) and vec(AD_1)=k_2 vec(AD,) where k_1,k_2 and k_3 are scalar.

If three salts AB(s), AC(s) and AD(s) have equal solubility product then the solubility of

In a quadrilateral ABCD, it is given that AB |\|CD and the diagonals AC and BD are perpendicular to each other. Show that AD.BC >= AB. CD .

In Delta ABC, AB = AC and D is a point an side AC such that AD = BD = BC . Show that : angle ADB = 108 ^(@)

In an isosceles triangle ABC, AB = AC and D is a point on BC produced. Prove that : AD^(2)=AC^(2)+BD.CD