Mada za sehemu hiiGeometryMada 15
- Measuring angles
- Drawing angles by using a protractor
- Angles in plane figures
- The parallelogram
- The Trapezium
- Circumference of a circle
- Area of Plane Figure
- Area of Trapezium
- Area of a circle
- Areas of three-dimensional figures
- Surface area of a cylinder
- Volumes of three-dimensional figures
- Volume of a cylinder
- Coordinate geometry
- Drawing plane figures using coordinates of points
Plane figures are closed flat figures in a plane with length and width. Plane figures have no thickness. Since plane figures are closed, they have specific sum of degrees of their interior angles. Examples of plane figures are triangles, circles, and quadrilaterals. In this section, you will learn to calculate angles in plane figures.
Remember that you have learnt to find the perimeters and areas of triangles, squares and rectangles. In this section, you will learn to find the perimeters of parallelograms and trapeziums.
Parallelograms and trapeziums are plane figures with four angles. These figures share several properties although they differ in some other properties
The perimeter of a figure is the length of the outline of the figure. It is obtained by adding the lengths of all the sides of a given figure.
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