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A polyhedron is a solid shape bounded by polygons whereas non-polyhedrons do not have polygon shaped faces.
A polyhedron is said to be regular if its faces are made up of regular polygons and the same number of faces meet at each vertex.
An irregular polyhedron is made of polygons whose sides and angles are not of equal measure.
Cubes, cuboids, prisms, and pyramids are few examples of polyhedrons.

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Root squarr

Posted by Mamta Kaintura 6 years, 1 month ago

CBSE > Class 08 > Mathematics

1 answers

Gajendra Singh 6 years, 1 month ago

It is so easy do find root

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Shabno sum

Posted by Kaasthuri Sumathi 6 years, 1 month ago

CBSE > Class 08 > Mathematics

1 answers

Gajendra Singh 6 years, 1 month ago

Mean please clarify this

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ABCD is a parallelogram. EB is the bisector of angle B . And AB=2BC. Prove that AE is the bisector of angle A.

Posted by Nitish Kumar 6 years, 1 month ago

CBSE > Class 08 > Mathematics

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ABCD is a parallelogram. EB is the bisector of angle B . And AB=2BC. Prove that AE is the bisector of angle A.

Posted by Nitish Kumar 6 years, 1 month ago

CBSE > Class 08 > Mathematics

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Perimeter of semicircle

Posted by Pooja Ashra 6 years, 1 month ago

CBSE > Class 08 > Mathematics

4 answers

Sakshi Singh 6 years, 1 month ago

Pie r

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Krishna Chauhan 6 years, 1 month ago

Where π=22/7 or 3.14

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Krishna Chauhan 6 years, 1 month ago

2πr

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Yogita Ingle 6 years, 1 month ago

The perimeter of a semicircle is half of the circle.
As the perimeter of a circle is 2πr or πd.
So, the perimeter of a semicircle is 1/2 (πd) or πr, where r is the radius.

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A square minus b square

Posted by Harshil Bhatnagar 6 years, 1 month ago

CBSE > Class 08 > Mathematics

2 answers

Sakshi Singh 6 years, 1 month ago

a+b,a-b

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Amita Sinha 6 years, 1 month ago

a^2-b^2 Solution:- (a+b)(a-b)

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The area of a trapezium is 450m, the height is 15m, the ratio of the parallel side are 3:2 . Find the length of the parallel sides

Posted by Meenakshi Rajendran 6 years, 1 month ago

CBSE > Class 08 > Mathematics

0 answers

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2-3+55-8-99

Posted by Anajana Jangid 6 years, 1 month ago

CBSE > Class 08 > Mathematics

7 answers

Hem Shukla 6 years, 1 month ago

-53

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Harshil Bhatnagar 6 years, 1 month ago

-53

1Thank You

Piyush Kumar 6 years, 1 month ago

-53

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Parth Coc 6 years, 1 month ago

-53

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Suyogh N 6 years, 1 month ago

_53

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Yogita Ingle 6 years, 1 month ago

2-3+55-8-99

= -1+55-8-99

= 55-8-100

= 47-100

= - 53

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Ruchit Sanadya 6 years, 1 month ago

_53

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Minus 2 upon 3 multiply 3 upon 5 + 5 upon 2 - 3.5 x 1.6

Posted by Ranbir Ranbir 6 years, 1 month ago

CBSE > Class 08 > Mathematics

1 answers

Ruchit Sanadya 6 years, 1 month ago

_3.5

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2 - 3

Posted by Ranbir Ranbir 6 years, 1 month ago

CBSE > Class 08 > Mathematics

6 answers

Darth Vader ☠️☠️??☠️☠️?? 6 years, 1 month ago

-1

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Hem Shukla 6 years, 1 month ago

-1

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Parth Coc 6 years, 1 month ago

-1

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Manshri Verma 6 years, 1 month ago

-1

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Anajana Jangid 6 years, 1 month ago

-1

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Naman Ahden 6 years, 1 month ago

-1

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2345 divisible by 8

Posted by Maharaj Yadav 6 years, 1 month ago

CBSE > Class 08 > Mathematics

4 answers

Hem Shukla 6 years, 1 month ago

No.. 2345 is not divisible by 8

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Anajana Jangid 6 years, 1 month ago

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Ruchit Sanadya 6 years, 1 month ago

No it is not divisible by 8 .we konw the divisibility rule of 8 is if last 2 no.contain table of 8 then it is divisible.in this question there is last no.is 45 it is not come in the table of 8

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Aarya Patel 6 years, 1 month ago

No it is not divisible by 8

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If a box of sweets is divided among 24 children they will get 5 sweets each .How many would each get if the number of the children is reduced by 4

Posted by Kjsanthosh Kjsanthosa 6 years, 1 month ago

CBSE > Class 08 > Mathematics

1 answers

Avishi Chauhan 6 years, 1 month ago

No. Of children. no. of sweets 24. 5. 24-4=20. x. 24 children is getting 5 . So,20 will get more sweets. Hence, it is a inverse proportion x/5=24/20 24/20×5=x x=6 If the no. of children is 20 then each child would get 6 sweets

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Find the altitude of a triangle reason whose base is 28 metre and the area of 224 metre square

Posted by Kiran Nishad 6 years, 1 month ago

CBSE > Class 08 > Mathematics