FOR AGES 3 YEARS TO 18 YEARS
At Kidadl we pride ourselves on offering families original ideas to make the most of time spent together at home or out and about, wherever you are in the world. We strive to recommend the very best things that are suggested by our community and are things we would do ourselves - our aim is to be the trusted friend to parents.
We try our very best, but cannot guarantee perfection. We will always aim to give you accurate information at the date of publication - however, information does change, so it’s important you do your own research, double-check and make the decision that is right for your family.
Kidadl provides inspiration to entertain and educate your children. We recognise that not all activities and ideas are appropriate and suitable for all children and families or in all circumstances. Our recommended activities are based on age but these are a guide. We recommend that these ideas are used as inspiration, that ideas are undertaken with appropriate adult supervision, and that each adult uses their own discretion and knowledge of their children to consider the safety and suitability.
Kidadl cannot accept liability for the execution of these ideas, and parental supervision is advised at all times, as safety is paramount. Anyone using the information provided by Kidadl does so at their own risk and we can not accept liability if things go wrong.
You must have heard your mathematics teacher mentioning a figure known as an 'angle.'
But what are angles and how much do you know about them? Let's find out!
So, imagine we draw a straight line from a point, called a vertex, and then draw another one from the same vertex, but in a different direction. Now, what we have between these two lines (referred to as rays) is called an angle. Here are a few different types of angles and their characteristics.
Two parallel lines inclined parallelly and forming zero degrees are called zero degree angles. When two equal straight lines intersect at a vertex that forms an angle of 90°, it's known as an acute angle. When two rays stand perpendicular to each other and form an angle of 90°, it is a right angle.
An angle between 90° and 180° formed by an intersection between two lines is an obtuse angle. Two equal rays joined end to end at a point form an angle of 180°, or a straight angle.
An angle between 180° and 360°, which also looks like a half-circle, is a reflex angle. An angle of 360° which looks like a complete circle is a complete angle. If two lines intersect, we get opposite angles, which are always equal. Angles sprouting from the same vertex are adjacent angles.
If the sum of two angles is 90°, we get complementary angles. If the sum of two angles is 180°, we get supplementary angles.
When a line crosses two parallel lines, it's known as a transversal. When an angle is formed outside a diagram or a shape, we get an exterior angle.
Angles that form within a diagram or shape are called interior angles. All interior angles of a triangle add up to 180°.
A triangle can be classified as an equilateral, scalene, or right-angle triangle based on its angles.
Angles come into play in various instances in your life.
Angles play an important role in the study of geometry by helping us define and study polygons like triangles and quadrilaterals.
Angles are also important when it comes to the study of trigonometry, which is again important for determining directions and then using a compass to find the correct route.
But there's more to angles than what's on the page in your geometry book. Wait until you read about their usage in real life.
Angles play a vital role in architecture.
Angles are also important in building furniture, which, like architecture, demands precise definitions and measurements.
What are the seven types of angles?
There is the acute angle, obtuse angle, right angle, straight angle, reflex angle, full angle, and zero angle.
What are two basic facts about angles?
If the sum of all angles on a line is 180°, it is a complementary angle, and if the sum of the angles is equal to 90°, it is a supplementary angle.
What are the operating principles when it comes to angles?
Angles in a triangle, straight line, and co-interior angles add up to 180°. Angles in a quadrilateral, and around a point, add up to 360°. Vertically opposite and alternate angles are always equal.
Why do we need angles?
Angles are vital to the study of polygons, including triangles and quadrilaterals.
When was the angle created?
Angles were first discovered by Greek mathematicians Euclid and Carpus of Antioch, and the philosopher Eudemus.
What is the smallest angle?
The zero angle.
What is a full angle?
A 360° angle.
Can an angle be negative?
Yes, angles measured in clockwise directions are negative.
Read The Disclaimer
At Kidadl we pride ourselves on offering families original ideas to make the most of time spent together at home or out and about, wherever you are in the world. We strive to recommend the very best things that are suggested by our community and are things we would do ourselves - our aim is to be the trusted friend to parents.
We try our very best, but cannot guarantee perfection. We will always aim to give you accurate information at the date of publication - however, information does change, so it’s important you do your own research, double-check and make the decision that is right for your family.
Kidadl provides inspiration to entertain and educate your children. We recognise that not all activities and ideas are appropriate and suitable for all children and families or in all circumstances. Our recommended activities are based on age but these are a guide. We recommend that these ideas are used as inspiration, that ideas are undertaken with appropriate adult supervision, and that each adult uses their own discretion and knowledge of their children to consider the safety and suitability.
Kidadl cannot accept liability for the execution of these ideas, and parental supervision is advised at all times, as safety is paramount. Anyone using the information provided by Kidadl does so at their own risk and we can not accept liability if things go wrong.
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