WebTrig-3 (Solutions of Triangle) (Sol) - Free download as PDF File (.pdf), Text File (.txt) or read online for free. Q.3101/6 In a triangle ABC, BD is a median. If l (BD) = [Sol. Given m = 3 c 4 3 ·l (AB) and DBC = . Determine the ABC. 4 2 [Ans. 120°] using m-n theorem b b cot = 2 cot 2 cot = cot applying sine rule in ADB c sin( ) sin( ) ; c sin 3 c 4 sin( ) sin( ) 3 sin 4 3 = 4 3 sin cos … WebSep 16, 2024 · edited Sep 18, 2024 by Vikash Kumar. In a triangle ABC, the incircle (centre O) touches BC, CA and AB at points P, Q and R respectively. Calculate: (i) ∠QOR. (ii) ∠QPR ; …
How to construct (draw) the incircle of a triangle with compass …
WebLet ABC be the triangle with AB =1, AC =3 and ∠ BAC= π2. If a circle of radius r > 0 touches the sides AB, AC and also touches internally the circumcircle of the triangle ABC, then the value of r is ... In triangle ABC, ∠ A = π / 3 and its incircle is of unit radius. If the radius of the circle touching the WebMar 11, 2024 · The incircle of triangle ABC touches sides BC, AB, and AC at D, E, and F, respectively. Find the area of quadrilateral AEIF. AB = 13 AC = 14 BC = 15 I c I I b I I a I Semiperimeter s = ( a + b + c )/2 = 21 Triangle (ABC) area is: A = sqrt [ s (s-a) (s-b) (s-c)] = 84 u² Radius r = A / s = 4 Angle BAC => cos (∠A) = ( b² + c² - a² ) / 2bc = 67.38° smart car sound
If a triangle ABC, the incircle touches the sides BC, CA and AB ...
WebJan 25, 2024 · Define Incircle of a Triangle A circle is drawn inside a triangle such that it touches all three sides of the triangle is called the incircle of a triangle. Learn 11th CBSE Exam Concepts The sides of the triangle which touches the circle are tangents to the circle. WebJan 25, 2024 · Step 1: Construct the incircle of the triangle \ ( ABC\) with \ (AB = 7\, {\rm {cm,}}\) \ (\angle B = {50^ {\rm {o}}}\) and \ (BC = 6\, {\rm {cm}}.\) Step 2: Draw the angle … WebTriangle ABC has an incircle of 4 cm. Centre is I. The circle touches BC at D, AC at E and AB in F. BC = 14 cm, and BD:DC = 8:6 or BD = 8 cm, CD = 6 cm. In ∆BID, BD = 8 cm, DI = 4 cm, So smart car spain