Mensuration Of 2D Shapes
Bayani Gaba-gaba
Mensuration is the branch of mathematics concerned with measuring lengths, areas and volumes. In two dimensions you need to find perimeters (the distance around a shape) and areas (the space inside a shape) for triangles, rectangles, parallelograms, trapezia, circles, semicircles and compound shapes built from these.
This topic also requires you to convert fluently between metric units for both length and area. Higher-tier students extend circle work to arc lengths and sector areas. These skills appear across both papers and connect directly to 3D mensuration and trigonometry.
Manufura
- Convert measurements within the metric system to include linear and area units
- Find the perimeter of shapes made from triangles and rectangles
- Find the area of simple shapes using the formulae for the areas of triangles and rectangles
- Find the area of parallelograms and trapezia
- Find circumferences and areas of circles using relevant formulae; find perimeters and areas of semicircles
- [Higher] Find perimeters and areas of sectors of circles
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- The area of a triangle with base 10 cm and height 6 cm is: A) 60 cm^2 B) 30 cm^2 C) 16 cm^2 D) 36 cm^2 Answer: B
- How many cm^2 are in 1 m^2? A) 100 B) 1000 C) 10 000 D) 100 000 Answer: C
- The circumference of a circle with diameter 10 cm is: A) 10pi cm B) 25pi cm C) 100pi cm D) 5pi cm Answer: A
- A trapezium has parallel sides 8 cm and 12 cm with height 5 cm. Its area is: A) 40 cm^2 B) 50 cm^2 C) 60 cm^2 D) 100 cm^2 Answer: B
- The perimeter of a semicircle with diameter 14 cm is closest to: A) 22.0 cm B) 36.0 cm C) 44.0 cm D) 58.0 cm Answer: B
Akwai a cikin manhajar Green Bridge
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Akwai a cikin manhajar Green Bridge
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