calculate angles

The circle graph gives the measure of the central angle for each category. Calculate the percent of the Hispanics in the United States. => 55% or 25% or 50% or 60%..

The radius of a sector of a circle is 2 cm and its central angle is 90 degrees. Calculate the perimeter of the sector. => 4 cm or π cm or (4 + π ) cm or (2 + π ) cm..

Introduction - When calculating sides or angles of right angled triangles, it is easiest to use the appropriate trigonometric relation. Finding the value of trigonometric ratios from the tables is learnt easily. Nowadays of course calculators are able to give..

When calculating sides or angles of right angled triangles , it is easiest to use the appropriate trigonometric relation. Finding the value of trigonometric ratios from the tables is learnt easily. Nowadays of course calculators are able to give ..

To determine the angle of minimum deviation the side AB of the prism is made to face the ray of light. On looking through the face AC and rotating the prism table, the image of slit also turns. For a particular position of the prism, the slit becomes stationary. On further rotating the p..

To solve a right angled triangle, we need to find out the unknown sides and the angles with the help of t-ratios. To find a side, usually we take such t-ratios that involve the unknown sides. In the figure, AB = 100 cm, find (i) x and (ii) ..

Calculate the angle of dispersion between red and violet colours produced by a filter glass prism of refracting angle of 60 0..

When calculating sides or angles of right angled triangles, it is easiest to use the appropriate trigonometric relation. Finding the value of trigonometric ratios from the tables is learnt easily. Nowadays of course calculators are able to give accurate value..

Calculate the angle of dispersion between red and violet colours produced by a filter glass prism of refracting angle of 60 0 . Given: m 0 = 1.663 and m r = 1...