Shapes which have right angles

Example 1: Trevor wants to know which types of angles are greater than the right angle. Can you help him figure out this problem? They are:. Example 2: Fiona saw the clock in her home and she was curious to know the angle made by two hands of a clock at p. Find the angle made by the clock hands at p. We can see in the picture that the two hands of the clock form an L-shaped angle that is a right angle. Answer: The angle formed by the clocks at p. We can see it in many places like the corners of a window, the edges of a cupboard, the screen of a mobile phone, and so on.

A right angle is a degree angle. It is formed when two lines intersect each other at a degree angle. Kids can correlate the right angle with the letter L. It is the angle between the leg and arm of the letter L. If the letter L can be formed anywhere on the given shape, it can be termed as a right angle. We can use protractors, set-squares, or try squares to measure a right angle.

Just place them properly and check the measurement and position. Try drawing a quadrilateral, and measure the angles. Some types are also included in the definition of other types! For example a square , rhombus and rectangle are also parallelograms. See below for more details. Also opposite sides are parallel and of equal length. A rhombus is a four-sided shape where all sides have equal length marked "s". Another interesting thing is that the diagonals dashed lines meet in the middle at a right angle.

In other words they "bisect" cut in half each other at right angles. We look out for horizontal Lines that go from left to right, like the horizon. We will test the angles of this triangle with a ruler to see if any of them are right angles. The sides of the ruler line up perfectly with the angle in the bottom left corner and so, it is a right-angle.

We mark right angles with a square. We place the ruler along the sides of the other angles but neither of them line up. We only have one right angle. We call a triangle that contains a right angle a right-angled triangle. The lines that make right angles line up with the sides of a ruler or set square. We mark right angles with a small square in the corner of the angle.

We line the ruler up with each angle in our trapezium. We can see that the two base angles are right angles because the sides line up with the sides of the ruler.