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What is the sides regular polygon

Posted by Ahala Naja 5 years, 7 months ago

CBSE > Class 08 > Mathematics

1 answers

Yogita Ingle 5 years, 7 months ago

A "Regular Polygon" has:

all sides equal and
Side = 2 × Radius × sin(<font size="+1"><font face="Times New Roman, Times, serif">π</font></font>/n)

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20÷3=4?

Posted by Mohit Kumar 5 years, 7 months ago

CBSE > Class 08 > Mathematics

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one angle of a parallelogram is of measure 70 degree find the measure of the remaining angle of the parallelogram

Posted by Satyam Garg 5 years, 7 months ago

CBSE > Class 08 > Mathematics

4 answers

Krishang Patil 5 years, 7 months ago

If angle A is 70°, the opposite angle(angle C) will also be 70° as opposite angles are equal in a parallelogram... Now angle B and angle D will be of same measure... Let them be 'x' A+B+C+D=360° (angle sum property of a parallelogram) 70+x+x+70=360° 2x+140=360° 2x=360-140 2x=220 x=220÷2 =110 Thus, angle B=110÷2 =55° angle C=70° angle D=110÷2

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Mohit Kumar 5 years, 7 months ago

70° (Opposite angles of a parallelogram are equal) 70°+B =180°(Adjacent angles of a parallelogram are supplementary) B=180-70=110° 110 (Opposite angles of a parallelogram are equal)

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Satyam Garg 5 years, 7 months ago

very important

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Satyam Garg 5 years, 7 months ago

pleaase

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find the square root by prime factorization 3364

Posted by Payal Parent 5 years, 7 months ago

CBSE > Class 08 > Mathematics

2 answers

Yogita Ingle 5 years, 7 months ago

First we factor the number,

Pairing in two to get the perfect square,

Taking square root both side,

Therefore, The square root of 3364 is 58.

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Mohit Kumar 5 years, 7 months ago

3364÷2=1684÷2=842÷2=421÷

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Hi everyone please help me to solve this problem Find the square roots of 100 and 169 by the method of repeated subtraction

Posted by Ashmeen Bains 5 years, 7 months ago

CBSE > Class 08 > Mathematics

3 answers

Mohit Kumar 5 years, 7 months ago

1 = 99 Step II 99 - 3 = 96 Step III 96 - 5 = 91 Step IV 91 -7 = 84 Step V 84 - 9 = 75 Step VI 75 - 11 = 64 Step VII 64 - 13 = 51 Step VIII 51 - 15 = 36 Step IX 36 - 17 = 19 Step X 19 - 19 = 0 0 is obtained at the 10th step. Hence, 10 is the square root of 100. Square root of 169 by method of subtraction Step I 169 - 1 = 168 Step II 168 - 3 = 165 Step III 165 - 5 = 160 Step IV 160 - 7 = 153 Step V 153 - 9 = 144 Step VI 144 - 11 = 133 Step VII 133 - 13 = 120 Step VIII 120 - 15 = 105 Step IX 105 - 17 = 88 Step X 88 - 19 = 69 Step XI 69 - 21 = 48 Step XII 48 - 23 = 25 Step XIII 25 - 25 = 0 0 is obtained at the13th step. Hence, 13 is the square root of 169

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Srishti Majumder 5 years, 7 months ago

Square root of 100 by method of subtraction Step I 100 - 1 = 99 Step II 99 - 3 = 96 Step III 96 - 5 = 91 Step IV 91 -7 = 84 Step V 84 - 9 = 75 Step VI 75 - 11 = 64 Step VII 64 - 13 = 51 Step VIII 51 - 15 = 36 Step IX 36 - 17 = 19 Step X 19 - 19 = 0 0 is obtained at the 10th step. Hence, 10 is the square root of 100. Square root of 169 by method of subtraction Step I 169 - 1 = 168 Step II 168 - 3 = 165 Step III 165 - 5 = 160 Step IV 160 - 7 = 153 Step V 153 - 9 = 144 Step VI 144 - 11 = 133 Step VII 133 - 13 = 120 Step VIII 120 - 15 = 105 Step IX 105 - 17 = 88 Step X 88 - 19 = 69 Step XI 69 - 21 = 48 Step XII 48 - 23 = 25 Step XIII 25 - 25 = 0 0 is obtained at the13th step. Hence, 13 is the square root of 169

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Srishti Majumder 5 years, 7 months ago

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Bhargav had a piece of ribbon 6/3/4 m long. She used 2/5/12 m from it. How much ribbon was left with her?

Posted by Poonam Trivedi 5 years, 7 months ago

CBSE > Class 08 > Mathematics

2 answers

Mohit Kumar 5 years, 7 months ago

Step-by-step explanation: The total length of the ribbon is, L = . The length of ribbon used is, l = . Compute the remaining length of ribbon as follows: Remaining length = L - l Thus, the remaining length of ribbon is .

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Gaurav Seth 5 years, 7 months ago

The remaining length of ribbon is .

Step-by-step explanation:

The total length of the ribbon is, L = .

The length of ribbon used is, l = .

Compute the remaining length of ribbon as follows:

Remaining length = L - l

Thus, the remaining length of ribbon is .

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find a number whose fifth P increased by 40 is equal to its fourth part decreased by 40

Posted by Sukhpreet Singh 5 years, 7 months ago

CBSE > Class 08 > Mathematics

1 answers

Gaurav Seth 5 years, 7 months ago

Let the number be x

Its fifth part is = x/5

Its fourth part is= x/4

A.T.Q

(X/5) +30 = (X/4) - 30

(X/5) -(X/4) = -30-30

(4X-5X)/20 = -60

-X = -60 *20

-X= - 1200

X= 1200

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79 divide by 845

Posted by Krishna Sharma 5 years, 7 months ago

CBSE > Class 08 > Mathematics

0 answers

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WHAT ARE THE PROPERTIES WANT TO LEARN FROM MATHS 3RD CHAPTER ?

Posted by Anna Maria 5 years, 7 months ago

CBSE > Class 08 > Mathematics

0 answers

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Long division method 1458

Posted by Muskaan Agarwal 5 years, 7 months ago

CBSE > Class 08 > Mathematics

1 answers

Muskaan Agarwal 5 years, 7 months ago

Long division method 1458

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Guys please help in this question ??? What is the sum of all interior angle of regular pentagon,hexagon,nonagon and 12sides of a polygon

Posted by Sajal Choudhary 5 years, 7 months ago

CBSE > Class 08 > Mathematics

1 answers

Bhavya Punia 5 years, 7 months ago

Sum of the interior angles of an n-sided polygon = (n−2)×180°n-2×180° (i) For a pentagon: n=5∴ (n−2)×180°=(5−2)×180°=3×180° = 540°n=5∴ n-2×180°=5-2×180°=3×180° = 540° (ii) For a hexagon: n=6∴ (n−2)×180°=(6−2)×180°=4×180° = 720°n=6∴ n-2×180°=6-2×180°=4×180° = 720° (iii) For a nonagon: n=9∴ (n−2)×180°=(9−2)×180°=7×180° = 1260°n=9∴ n-2×180°=9-2×180°=7×180° = 1260° (iv) For a polygon of 12 sides: n=12∴ (n−2)×180°=(12−2)×180°=10×180° = 1800

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Solve 5x+7/2equal to 3/2x-14

Posted by Swathi Sri .S 5 years, 7 months ago

CBSE > Class 08 > Mathematics

1 answers

Swathi Sri .S 5 years, 7 months ago

Say ans

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The compound intrest on 50000 at 4% per annum for 2 years compounded annually is _________

Posted by Sowjanya Lekisha 5 years, 7 months ago

CBSE > Class 08 > Mathematics

2 answers

Jitesh Prajapati 5 years, 7 months ago

4000

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Gaurav Seth 5 years, 7 months ago

Answer:

Compund Interest will be (b) Rs . 4080

Step-by-step explanation:

When compounded anually,

Total Amount = Principal(1 + Rate/100)^Time period

= 50000 (1 + 1/25) ^ 2

= 50000 (26/25) (26/25) = 54080

Compound Interest = Total Amount - Principal

= 54080 - 50000 = 4080

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Summary of chapter 9 class 8th

Posted by Hargun Singh 5 years, 7 months ago

CBSE > Class 08 > Mathematics

0 answers

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What is the additive inverse of -3/4

Posted by Taniprabha Sahu 5 years, 7 months ago

CBSE > Class 08 > Mathematics

2 answers

Jitesh Prajapati 5 years, 7 months ago

-4/3

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Bhumika Joshi 5 years, 7 months ago

‐4/3

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How do microbes clean the environment

Posted by Darshita Sharma 5 years, 7 months ago

CBSE > Class 08 > Mathematics

3 answers

Bhavya Punia 5 years, 7 months ago

The microorganisms help to clean the environment by decomposition of dead and decaying organic matter

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Yogita Ingle 5 years, 7 months ago

Microbes help to keep our environment clean by decomposing dead matter. They decomposed substances are recycled as these get reused from the soil by plants.
Some bacteria decompose sewage and other waste in water. This is nature’s method of keeping the environment free from pollution.

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Hinal ... 5 years, 7 months ago

The microorganisms decompose dead organic waste of plants and animals converting them into simple substances. These substances are again used by other plants and animals. Thus, Microorganisms can be used to degrade the harmful and smelly substances and thereby cleans up the environment.

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Akshita Ranjan

Posted by Akshita Ranjan 5 years, 7 months ago

CBSE > Class 08 > Mathematics