Mathematics Presentation (Geometry) to Y10/11.pptx

Mathematics Slide explain to students about geometry

1. Mathematics Presentation Geometry - Y10 2023

2. The importance of Mathematics Mathematics is a fundamental subject in any well-rounded education. It teaches the learners the ability to think, to reason critically and to solve problems using a variety of different techniques. It helps learners to develop a feel for quantity, patterns and relationships. Most of the courses will require mathematical skills in many different subjects (University courses will usually have many subjects under a roof). Even if you are working in non or semi skilled jobs, you still need to know Mathematics as having the idea in monetary term is vital for these jobs.

3. How Geometry is used in real life Geometry is one of the oldest known areas of mathematics. Today geometry is used in construction, surveying and architecture to plan and build roads, bridges, houses and office blocks. We also use lines and angles to find our way on maps and in the software of GPS devices. Artists use them to get the correct perspective in drawings, opticians use them to make spectacle lenses and even snooker players use them to work out how to hit the ball.

4. Angles and parallel lines When two parallel lines are cut by a third line (the transversal) eight angles are formed. These angles form pairs which are related to each other in specific ways. Corresponding angles (‘F ’-shape) When two parallel lines are cut by a transversal four pairs of corresponding angles are formed. Corresponding angles are equal to each other.

5. Circles In mathematics, a circle is defined as a set of points which are all the same distance from a given fixed point. In other words, every point on the outside curved line around a circle is the same distance from the centre of the circle.

6. 1 Pythagoras’ theorem describes the relationship between the sides of a right-angled triangle. 2 The longest side – the side that does not touch the right angle – is known as the hypotenuse. 3 Centuries before the theorem of right-angled triangles was credited to Pythagoras, the Egyptians knew that if they tied knots in a rope at regular intervals. 4 In some situations you may be given a right-angled triangle and then asked to calculate the length of an unknown side. You can do this by using Pythagoras’ theorem if you know the lengths of the other two sides. 5 a²+ b²= c² Pythagoras’ theorem

7. Take this important everyone!