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Ask QuestionPosted by Sima Sikaria 4 years, 8 months ago
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Posted by Designer Ayush Editor 7 years ago
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Ram Kushwah 7 years ago
Let students in 1st group=X
2nd gr.=X-5
5th gr.=X-5
4th gr.=5th gr.+3=X-5+3=X-2
3rd group=4th+2=X-2+2=X
Adding all groups=48
X+X-5+X-5+X-2+X=48
5X=48+12=60
1st gr=X=12
2nd gr.=5th gr.=X-5=7
3rd gr. =X=12
4th gr.=X-2=12-2=10
Posted by Harleen Kaur 5 years, 10 months ago
- 2 answers
Yogita Ingle 7 years ago
We know, the sum of the angles of a triangle = 180°
Since there are two triangles,
therefore, the sum of two triangles is 180° + 180° = 360°
The sum of two triangles is = the sum of angles of a quadrilateral = The sum of the four angles = 360°.
Posted by Yash D 7 years ago
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Gaurav Seth 7 years ago
First we have to find the area of the hall
Area of the hall =l×b
=16×12
=192m2
Area of the marble slab =8x6
=48cm2
{1 m2 =10,000 cm2}
(Convert m2 into cm2)
192m2=19,20,000 cm2
Therefore, how many slabs required=1920000÷48
=40000.
Thus, 40000 tiles are needed to cover the floor.
Yogita Ingle 7 years ago
Length of rectangular floor of room= 16 m = 1600 cm
breadth of rectangular floor= 12m = 1200 cm
∴Area of rectangular floor = length× breadth = 1600× 1200 = 1920000 cm2
Area of rectangular tile = length× breadth = 8× 6 = 48 cm2 9
Now number of tiles required to cover the floor = 19200/48 =40,000
number of tiles required =40,0000 tiles
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Yogita Ingle 7 years, 1 month ago
If side of square is x.
then area of square = (side)2
If length l and breadth b of rectangle
Area of rectangle = l × b
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Sia ? 4 years, 8 months ago
When two molecules of hydrogen combine, H2 is formed. H2 is molecular hydrogen. It is bonded together by one single bond. 2H denotes two moles of elemental hydrogen .it should be noted that elemental hydrogen is not bonded to anything. Two separate hydrogen atoms that are not combined as a unit.
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