WORD PROBLEMS RELATED TO MENSURATION CLASS 8th, 9th AND 10th Q.1] Find the area of the polygon given below . Solution : Area of polygon RSTUV = Area of △RUV + Area of △RTU + Area of △RST = 1/2 RU x VA + 1/2RU x UT + 1/2 RT x SB Also , △RTU […]
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WORD PROBLEMS ON MENSURATION FOR CLASS 8TH,9TH,10TH MENSURATION : Q 1]. ABCD and WXYB are two identical squares as shown in the figure given , with side of length 8cm . If P is the midpoint of AD and WX . Find the area of the hexagon BCDPXYB. Solution : So , ∠A = ∠W
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POINTS TO REMEMBER RELATED TO THREE DIMENSIONAL SHAPES :CLASS 5TH, 6TH, 7TH, 8TH, 9TH & 10TH READ : REPEAT : LEARN MUST KNOW THESE POINTS : 1) An object that occupies space is called a solid. 2) Shapes of solids are known as three – dimensional shapes. CUBOID3a) A cuboid has length, breadth and height.
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WORD PROBLEMSRELATED TO MENSURATIONFOR CLASS 8TH , 9TH ,10TH Q 1.] A fixed open cylindrical metal tank having radius 4.9m and height 7.5m is to be painted from inside and outside . What will it cost at the rate of rupees 10 per m2 ? Solution : Fixed Open Cylindrical Metal Tank Given : Radius
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WORD PROBLEMS RELATED TO MENSURATION CLASS 8th, 9th AND 10th Q.1) An open cylindrical box of height 20cm and diameter 21cm is to be made using a cardboard. Find the area of the cardboard required to make the box. SOLUTION: OPEN CYLINDRICAL BOX Given: Height = 20cm Diameter = 21cm Radius = 21 / 2
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WORD PROBLEMS RELATED TO MENSURATION CLASS 8th, 9th, AND 10th Q.1 ) Six solid cubical stools with edge 65cm are to be painted red on all the sides. Find the quantity of paint required to paint 6 cubical stools if one can of paint is required to paint 11,700cm2 of area. SOLUTION: Given: No. of
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WORD PROBLEMS RELATED TO MENSURATION: CLASS 7TH, 8TH, 9TH & 10TH Q.1) Find the diagonal of a rectangle whose area is 60cm2 and wide 5 cm. SOLUTION : RECTANGLE GIVEN : Area = 60 cm2 width = B = 5 cmFind : diagonal of the rectangle = hypotenuse side = ? Step 1) Area =
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POINTS TO KNOW : RELATED TO QUADRILATERAL CLASS 6th, 7th, 8th, 9th & 10th POINTS TO REMEMBER:- 1) ( i ) A quadrilateral which has exactly one pair of parallel sides is called a trapezium. ( ii ) A quadrilateral in which both pairs of opposite sides are parallel is called a parallelogram. ( iii
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POINTS YOU MUST KNOW :- CLASS 6th, 7th, 8th, 9th &10th RELATED TO CIRCLES READ AND REMEMBER :- 1) A line segment with one end point at the center of a circle and the other on the circle is called a ‘radius’ of the circle. 2) All radii of a circle are equal. 3) A
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WORD PROBLEMS RELATED TO MENSURATION CLASS 8TH, 9TH & 10TH Q.1) Find the volume of the right circular cylinder whose curved surface area is 2640 cm2 and the circumference of the base is 66 cm. SOLUTION: circular cylinder Given : Curved surface area = LSA = 2640 cm2 Circumference = C = 66 cm Find
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