ABCD is a square and APB is an equilateral triangle. Prove in each case: 1) 𢁪PD ≅ 𢁫PC 2) Find the angles of 𢁭PC Solution : First PartGiven �P = Equilateral triangleR.T.P.1) 𢁪PD ≅ 𢁫PC 2) Find 𢈍PC, Read more
Three sums of speed distance and time are discussed in the video. The sums are given here. 1. A train 150 m long passes a telegrah post in 15 seconds.Find:a) Speed of the train in km/hr. b) Time Read more
In this video sums related to relative speed of boat in standstill water stream and in a water stream having speed in the same direction and also in the opposite direction have been discussed. Watch the video and comment below. Read more
Theorem :Tangent and radius of a circle are perpendicular to each other. Solution : Given: A circle with centre O. AB is the tangent to the circle at point B and OB is the radius of the circle.R.T.P. OB ⊥ Read more
Theorem: The angle in a semicircle is a right angle Given : A circle with centre 0 with � at centre and � at the circumference of the circle . RT.P. : the angle in a semicircle is a right Read more
Theorem : Opposite Angles of a Cyclic Quadrilateral are Supplementary. Solution : Given: ABCD is a cyclic quadrilateral.R.T.P.(Require To Prove) 1. � + � = 1800 2. � + � = 1800 Construction : Join OB and OD Read more
Theorem : A circle with centre O in which AB subtends 𢈊OB at centre and angle � at any point on the remaining part of the circle. R.T.P. – 𢈊OB = 2 x � Solution : Construction: Join CO and Read more
