CBSE > Class 09 > Mathematics | CBSE Board | Homework Help

If AB and AC sides of isosceles triangle ABC are equal then there opposite angles are also equal. AngleB=AngleC=90. And angle A =180-sum of angle (B+C). Okkk ...

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Mid point theroman

Posted by Himanshu Jaiswal 7 years, 10 months ago

CBSE > Class 09 > Mathematics

2 answers

Shourya Adhikari 7 years, 10 months ago

The line segment joining the midpoints of any two sides of a triangle is parallel to the third side and equal to half of it i.e. half of the third side.

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S Sihag Ji 7 years, 10 months ago

It means A line through the mid points of two sides of a triangle is parallel and half of the third side

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In triangle PQR, S is any point on the side QR of triangle PQR. Prove that PQ+QR+RP is greater than 2 PS

Posted by Gargi Tanwar 7 years, 10 months ago

CBSE > Class 09 > Mathematics

1 answers

Nivedhini Pari 7 years, 10 months ago

Use the theorem,the sum of two sides is always greater than the 3rd side. Now,in triangle PQS,PQ+QS>PS -eq 1 In triangle PRS,PR+SR>PS -eq 2 Now add EQ. 1 and EQ.2. So, PQ+QS+PR+SR>PS+PS PQ+PR+QR>2PS Thus proved

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Who is hena yelurkar

Posted by Suplex City ?? 7 years, 10 months ago

CBSE > Class 09 > Mathematics

0 answers

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Express x+2 =0 in tge form of ax+ by +c

Posted by Monali Gupta 7 years, 10 months ago

CBSE > Class 09 > Mathematics

3 answers

Jyoti Vaibhaw 7 years, 10 months ago

Sorry, c=2

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Jyoti Vaibhaw 7 years, 10 months ago

a=1, b=0, c=0

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Poorva Sethi 7 years, 10 months ago

a=x b=2 c=0

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2 cubes ,each of side 6cm joined end to end To form a new cuboid. Find TSA of cuboid

Posted by Rudresh Angadi 7 years, 10 months ago

CBSE > Class 09 > Mathematics

4 answers

Jyoti Vaibhaw 7 years, 10 months ago

432cm2

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Bittu Mitri Modak 7 years, 10 months ago

Sorry it was 360

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Bittu Mitri Modak 7 years, 10 months ago

288cm. 2

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Raunaq Razz 7 years, 10 months ago

2{(12×6)+(6×6)+(6×12)} 2(72+36+72) 2×180 360cm^2

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How to solve find the probablity that a leap year has 53 wednesday

Posted by Ashutosh Tiwari 7 years, 10 months ago

CBSE > Class 09 > Mathematics

1 answers

Abhay Krishan Raghav 7 years, 10 months ago

2/7

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Divide 135* angle in four equal parts

Posted by Alishan Chaudhary 7 years, 10 months ago

CBSE > Class 09 > Mathematics

3 answers

Vanshika Vijayvargiya 7 years, 10 months ago

33.5 is correct

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Vanshika Vijayvargiya 7 years, 10 months ago

33.2

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Bittu Mitri Modak 7 years, 10 months ago

33.75*

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What is the condition to prove that two line are parallel?

Posted by Akshita Singh 7 years, 10 months ago

CBSE > Class 09 > Mathematics

1 answers

Vanshika Vijayvargiya 7 years, 10 months ago

We have to proove corresponding angles are equal

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Anyone here who knows postulate no.5 and describe it in his own language????

Posted by Aisha Jain 7 years, 10 months ago

CBSE > Class 09 > Mathematics

7 answers

Khushi Singh 7 years, 10 months ago

Your welcome

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Aisha Jain 7 years, 10 months ago

Thank u soooooooooooooo much..

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Khushi Singh 7 years, 10 months ago

Jab koi ek line kisi do straight line par girta hai toh agar kisi ek side ke interior angle ka sum less then 180° hota hai toh un do straight lines ko agar badhate chale jaate toh woh uss side se ek point peh miles his side ke interior angle ka sum less then 180°h..

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Aisha Jain 7 years, 10 months ago

What happens ...btao na

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Khushi Singh 7 years, 10 months ago

Ohh.okk

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Aisha Jain 7 years, 10 months ago

Yes why not mein Hindustani hun....

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Khushi Singh 7 years, 10 months ago

Hindi mein bta du??