We try to understand what the physical meaning of trigonometry is? Trigonometry is nothing, but it is the relationship between the sides and angles of a right-angle triangle. For example - In a right...
If, the radius of a sphere=r Then, 1)CURVED SURFACE AREA OF SEMI(HEMI) SPHERE= 2πr2 2)TOTAL SURFACE AREA OF SEMI(HEMI) SPHERE= 3πr2 Ex;- If,radius of a sphere=r=14cm 1)CURVED SURFACE AREA...