right angle

An angle whose measure is 90 o is called a right angle..

It is an angle whose measure is equal to 90 o ..

Which of the these has at least one right angle? => pentagon or rectangle or circle or hexagon..

How many right angles are there in a parallelogram? => 1 or 3 or 2 or 0..

Which among the following represents a right angle? => Figure 4 or Figure 2 or Figure 1 or Figure 3..

The lines are said to be at right angles if the rotating half line (or ray) from starting from initial position to the final position describes one quarter of a circl..

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 accurate ..

Solution of Right Angled Triangles - 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 = ..

Which figures has an angle that appears to be a right angle? => Figure 2 or Figure 4 or Figure 1 or Figure 3..

In a right angled triangle, the orthocenter lies => outside the triangle or at the midpoint of the hypotenuse or inside the triangle or at the vertex containing the right angle..