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Geometry is defined as the branch of mathematics that studies the properties and measurements of a figure in a given space or plane. Basically, it deals with the volume and surface area of solid bodies and it calculates the area and diameter of plane figures.
MEP Y9 Practice Book B 7 Exercises 1. Calculate the area of each of the following shapes: (a) (b) (c) (d) 2. Calculate, giving your answers correct to 3 significant figures, the area of a circle with: (a) radius 6 m, (b) diameter 20 cm, (c) diameter 9 cm. 3. Calculate the area of each of the following shapes, giving your answers
The area of a surface is the amount of square length units contained in the surface. For example, 3 sq in. means that 3 squares, 1 inch on each side, can be placed precisely on some surface. (The squares may have to be cut and rearranged so they match the shape of the surface.)
Calculates the perimeter and area of rectangles using familiar metric units. Explores efficient ways of calculating perimeters by adding the length and width together and doubling the result
AREA AND VOLUME FORMULAS Areas of Plane Figures Square Rectangle Parallelogram s s b w l h 2A = s A = l • w A = b • h Triangle Trapezoid Circle h b h b 1 b 2 r d A = ½ b • h 2 A = ½ (b 1 + b 2 ) • h A = πr (π ≈ 3.14 or ) Circumference: C = 2πr = πd ...
Area, Surface Area & Volume. reference sheet. Definitions. Apothem: The line connecting the centre of a regular polygon with one of its sides. The line is perpendicular (at a right angle) to the side. Axis: A line of reference about which an object, point or line is drawn, rotated or measured.
Mensuration is the branch of mathematics deals with the measurement of geometric figures and their parameters. Click now to learn all mensuration concepts and get the list of mensuration formulas for 2D & 3D shapes. Also, download free PDF at BYJU'S.
