point race ca

If D, E and F are respectively the mid points of the sides BC, CA and AB of ΔABC, then the orthocenter of ΔDEF is the => orthocenter of ΔABC or circumcenter of ΔABC or incenter of ΔABC or centroid of ΔABC..

The points A (2,4) , B (2,6) and C (2 + 3 , 5) are the vertices of an equilateral triangle ABC. If D, E and F are the midpoints of the sides AB, BC and CA respectively, then triangle DEF forms _____________. => a scalene triangle or an equilateral triangle or a right triangle or..

D is a point on side BC of ΔABC such that m ∠ ADC = m ∠ BAC. If CA = 10 cm. and CB = 15 cm, then what is the length of CD ‾ ? => 6.66 cm or 22.5 cm or 5 cm or 7.5 cm..

Question: Why are the two non-metals, carbon and hydrogen are important chemical reference points with regard to the method of metal extraction and reactivity towards acids. Answer: The six metals K, Na, Li, Ca, Mg, and Al, which lie above carbon in the activity serie..

Methods of Study - The branch of genetics, which deals with the inheritance of characters in human beings, is called human genetics. Eugenics is a branch of human genetics which is concerned with the use of knowledge of genetics for the welfare of the human race. Sir Archibald Garrod, a B..

Magnesium belongs to group 2 of the periodic table along with other elements like Calcium (Ca), beryllium (Be), strontium (Sr), barium (Ba) and radium (Ra). These elements are called alkaline Earth metals. Due to their smaller size, the electrons are more tightly bound in them and s..

Question: The sides AB, BC, CA of a triangle ABC have 3, 4 and 5 interior points respectively on them. Find the number of triangles that can be drawn using these points as vertices. Answer: The points 3+4+5=12 points lie in a plane. To c..

. H 2 S undergoes dissociation and the hydrogen ions are lost. The particles become negatively charged due to (S 2 - ) which are left on the colloidal particles. v) Colloidal particles get charged by the simple process of electron capture. The colloidal particles may acquire charge by capturing ele..

The general outer electronic configurations of 's' block elements are ns 1 - 2 as all inner shells are already full. The 's' block elements are either all alkali metals like Li, Na, K, Rb, Cs and Fr, as in group 1 (having ns 1 outer electronic configuration) or alkaline Earth metals like B..

Summary - Water is a compound containing the elements of hydrogen and oxygen combined chemically in the ratio of 2:1. The 3 states of water i.e., ice, water and water vapour are interconvertible by heating or cooling. Water contains dissolved air and minerals which are responsible for its taste. Th..