Mensuration Formulas Class X
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MENSURATION AREAS RELATED TO CIRCLES Perimeter and Area of a Circle — A Review Circumference/Perimeter of a Circle, c=2πr Area of a Circle, A=πr2 Areas of Sector and Segment of a Circle
Area of segment of a circle = Area of the corresponding sector – Area of the corresponding triangle.
Areas of Combinations of Plane Figures
2
SURFACE AREAS AND VOLUMES
Surface area of a Cuboid = 2( lb + bh + hl ) Volume of a cuboid = l x b x h
Surface area of a Cube = 6a2 Volume of a cube = a3
3
Frustum of a Cone
Area of segment of a circle = Area of the corresponding sector – Area of the corresponding triangle.
Areas of Combinations of Plane Figures
2
SURFACE AREAS AND VOLUMES
Surface area of a Cuboid = 2( lb + bh + hl ) Volume of a cuboid = l x b x h
Surface area of a Cube = 6a2 Volume of a cube = a3
3
Frustum of a Cone
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