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

A convex quadrilateral can be defined as a quadrilateral whose both the diagonals are completely contained within the figure. On the other hand, a concave quadrilateral is a quadrilateral which is having at least one diagonal that lies partly or entirely outside of the figure.

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Explain mid point theoram of qaudrilateral

Posted by Priya Bungla 5 years, 3 months ago

CBSE > Class 09 > Mathematics

2 answers

Gaurav Kumar 5 years, 3 months ago

It is given in your ncert book or any reference book

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Sreeshanth Reddy 5 years, 3 months ago

Take a triangle ABC, AND line segment EF passes through AB,AC AND is perpendicular,then EF is parallel to BC.

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What was the properties of rhombus.

Posted by Nitesh B 5 years, 3 months ago

CBSE > Class 09 > Mathematics

3 answers

Gaurav Kumar 5 years, 3 months ago

All sides are equal , diagonals are equal and measure equal degrees

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Nitesh B 5 years, 3 months ago

Thanks for this and please answer my other questions

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Yogita Ingle 5 years, 3 months ago

Properties of a Rhombus

All sides are congruent.
Opposite angles are congruent.
The diagonals are perpendicular to and bisect each other.
Adjacent angles are supplementary (For eg., ∠A + ∠B = 180°).
A rhombus is a parallelogram whose diagonals are perpendicular to each other.

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If O is a point within a quadrilateral ABCD , show that OA+OB+OC+OD is greater than AC+BD

Posted by Ashish Singh 5 years, 3 months ago

CBSE > Class 09 > Mathematics

2 answers

Tanish Vishwakarma 5 years, 3 months ago

Hello

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Rani Kafle 5 years, 3 months ago

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Construct a rectangle whose adjacent sides are at length 5cm,and3.5cm

Posted by Shinchan Gaming 5 years, 3 months ago

CBSE > Class 09 > Mathematics

0 answers

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Find the value 3(125)1/3

Posted by Khushi Choudhari 5 years, 3 months ago

CBSE > Class 09 > Mathematics

5 answers

Gaurav Kumar 5 years, 3 months ago

125

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Lalita 123 5 years, 3 months ago

125

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Badal Sahu 5 years, 3 months ago

125.33

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The Cool Boy 5 years, 3 months ago

3*125*1/3 - 3*125=375 - 375*1/3 - 375/3 - 125 Or you can simply cut 3 from 3 and 1/3

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Aryan Kothari 5 years, 3 months ago

Not sure May be 125 is the ans

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The value of √6

Posted by Pushkar Pandey 5 years, 3 months ago

CBSE > Class 09 > Mathematics

3 answers

Poonkuzhali Balusamy 5 years, 3 months ago

2.449489742783

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Mohit Patel 5 years, 3 months ago

2.44948974

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Aryan Kothari 5 years, 3 months ago

2.449

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Construct a triangle ABC in which BC= 3.4 cm , AB - AC = 1.5 cm and angle B = 45 ° .

Posted by Bicky Mallik 5 years, 3 months ago

CBSE > Class 09 > Mathematics

0 answers

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Prove theorem 8.2

Posted by Gaurav Gupta 5 years, 3 months ago

CBSE > Class 09 > Mathematics

2 answers

Badal Sahu 5 years, 3 months ago

Which chapter

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Aryan Kothari 5 years, 3 months ago

Its easy First draw a diagonal and by asa rule you can congruent both the triangles made Now by cpct you can prove that opp. Sides are equal

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Find the surface area of a sphere of radius 10.5 CM

Posted by Sanjay Sanj 5 years, 3 months ago

CBSE > Class 09 > Mathematics

3 answers

Badal Sahu 5 years, 3 months ago

1386

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Aryan Kothari 5 years, 3 months ago

4× 22÷7×10.5×10.5= 1386

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Chandan Kumar 5 years, 3 months ago

Surface area of sphere =4πr*r =,

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Prove theoram 8.1

Posted by Gaurav Gupta 5 years, 3 months ago

CBSE > Class 09 > Mathematics

3 answers

Gurpreet Singh Batth 5 years, 3 months ago

We are not your servants

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Badal Sahu 5 years, 3 months ago

Which chapter

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Aryan Kothari 5 years, 3 months ago

Draw a diagonal and prove it either by sss rule sas rule asa rule your choice

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Draw a triangle whose sides are represented by x=0 ,y = 0 and x + y= 3 in the Cartesian system. Also find the coordinates of the vertices.

Posted by Riya Jaylwal 5 years, 3 months ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

Q8 of ncert ex7.1

Posted by सार्थक पटेल 5 years, 3 months ago

CBSE > Class 09 > Mathematics

0 answers

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1 by 2*10÷2+10÷2+1

Posted by Naresh Mks 5 years, 3 months ago

CBSE > Class 09 > Mathematics

1 answers

Ujjawal Verma 5 years, 3 months ago

1/16

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Factories x²+5x + 6

Posted by Priya Bungla 5 years, 3 months ago

CBSE > Class 09 > Mathematics

1 answers

Priya Bungla 5 years, 3 months ago

=X²+3x+2x + 6 =x(x+3)+2(x+3 ) = (x+3) (x+2)

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Two equal chords AB and CD of a circle with interest each other at E prove that AD=CB

Posted by Harshita Vaidh 5 years, 3 months ago

CBSE > Class 09 > Mathematics

1 answers

Priya Bungla 5 years, 3 months ago

Given = AB and CD are the two chords intersect at point E of a circle . To prove = AD = CB . Proof = .......... ..

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Two equal chords AB and CD are for concative point such that AB =CD prove that Ac=BC

Posted by Harshita Vaidh 5 years, 3 months ago

CBSE > Class 09 > Mathematics

0 answers

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Find sphere 20cm

Posted by Manjugouda Patil 5 years, 3 months ago

CBSE > Class 09 > Mathematics

0 answers

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Ab and cd are two parallel chords of a circle with centre o and radius 5cm, such that ab=6cm and cd=8cm if op perpendicular cd determine the length if pq

Posted by Jiya Pandey 5 years, 3 months ago

CBSE > Class 09 > Mathematics

0 answers

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How many zeroes are there in a non zero constant polynomial

Posted by Sneha Chandak 5 years, 3 months ago

CBSE > Class 09 > Mathematics

0 answers

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2(45)

Posted by Anurag Singh 5 years, 3 months ago

CBSE > Class 09 > Mathematics

4 answers

Poonkuzhali Balusamy 5 years, 3 months ago

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Chandan Kumar 5 years, 3 months ago

2*45=90

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Gaurav Gupta 5 years, 3 months ago

2×45 = 90

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Priya Bungla 5 years, 3 months ago

2×45=90

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Ghdhxuy

Posted by Prakash Sharma 5 years, 3 months ago

CBSE > Class 09 > Mathematics

0 answers

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Does congruent triangles have same areas

Posted by Vaibhav Raj 5 years, 3 months ago

CBSE > Class 09 > Mathematics

9 answers

Poonkuzhali Balusamy 5 years, 3 months ago

Yes,congruent triangles have equal area as they have equal shape and equal size

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Gunmeet Pahwa 5 years, 3 months ago

No it is not necessary that congruent triangles have same area. If both the two triangles are on same base and between the same parallels only then we can say that the two triangles have same area

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Bhoomi Bhoomi 5 years, 3 months ago

Yes

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Nitesh B 5 years, 3 months ago

Yes

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Priya Bungla 5 years, 3 months ago

Yes , congruent triangle has always same area

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Neha Choudhary 5 years, 3 months ago

Yup

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Shreya Raj 5 years, 3 months ago

yes

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Satyan Singh 5 years, 3 months ago

Yes

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Aatma Kannaujiya 5 years, 3 months ago

Yes congruent triangles have equal area

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In figure ad is the diameter of a circle if BCD 150 calculate angle BAD and ADB

Posted by Ravi Mourya 5 years, 3 months ago

CBSE > Class 09 > Mathematics

1 answers

Ravi Mourya 5 years, 3 months ago

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How to prove congruency

Posted by Shubham Upadhyay 5 years, 3 months ago

CBSE > Class 09 > Mathematics

2 answers

Bhoomi Bhoomi 5 years, 3 months ago

We can prove the congruency only by the four conditions and we have to see that what condition are suitable for the given triangles to prove their congruency - 1. SIDE SIDE SIDE (SSS) 2. SIDE ANGLE SIDE (SAS) 3. ANGLE ANGLE SIDE (AAS) and 4. RIGHTANGLE HYPOTENUSE SIDE (RHS).

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Priya Bungla 5 years, 3 months ago

Firstly we have to see all the sides and angles of two triangles which are equal and write any three same things and write his congruence rule.

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