# Triangles Free Doubts and Solutions

### CBSE - IX - Mathematics - Triangles

## In a triangle, ABC, AC is greater than AB and AD is the bisector of angle A, show that ADC is greater than ADB

**anuradha.rajesh**6th November 2018, 5:57 PM

### CBSE - IX - Mathematics - Triangles

## In the given figure ,ABCD is a square and EF is parallel to diagnol DB and EM=FM.Prove that:(i)BF=DE,(ii)AM bisects angle BAD

**abinash.gupta003**26th August 2016, 4:13 PM

### CBSE - IX - Mathematics - Triangles

## AD,BE and CF,the medians of triangle ABC are equal.then prove that triangle ABC is a equilateral triangle.

**abinash.gupta003**26th August 2016, 3:46 PM

### CBSE - IX - Mathematics - Triangles

## In figure AC> AB and D is a point on AC such that ABAD. Prove that CD < BC.

**sbhel72_in**20th August 2016, 9:31 PM

### CBSE - IX - Mathematics - Triangles

## ABC is a triangle in which angle b = 2 angle c. D is a point on side bc such that add bisectes angle bac. and ab = cd. Find the measure of angle bac. the solution is provided by topperlearing please explain me how angle dac = angle acb on the basis of cd = ab

**vatsalchoudhary41**31st December 2014, 3:02 PM

### CBSE - IX - Mathematics - Triangles

## how angle acd = angle dac. please explain me in detail.

**vatsalchoudhary41**24th December 2014, 12:37 PM

### CBSE - IX - Mathematics - Triangles

## ABC is a triangle in which angle b = 2 angle c. D is a point on side bc such that add bisectes angle bac. and ab = cd. Find the measure of angle bac

**vatsalchoudhary41**12th December 2014, 6:37 AM

### CBSE - IX - Mathematics - Triangles

## prove that: (i)If all medians of a triangle are equal then triangle is equilateral.
(ii)sum of any two medians of a triangle is greater than the third median.

**araima2001**10th September 2014, 8:36 PM

### CBSE - IX - Mathematics - Triangles

**ABC** is a **Right Angled Triangle** such that **AB=AC** and **bisector** of **angle C** intersects the side **AB** at **D**. Prove that **AC+AD=BC**

**ABC**is a

**Right Angled Triangle**such that

**AB=AC**and

**bisector**of

**angle C**intersects the side

**AB**at

**D**. Prove that

**AC+AD=BC**

**abhinavkumar281**9th September 2014, 10:20 PM

### CBSE - IX - Mathematics - Triangles

## <div>Q: If O is the midpoint within <img class="Wirisformula" src="https://images.topperlearning.com/topper/tinymce/integration/showimage.php?formula=1479ffc11ee9b4f2ce1ca84787c746a0.png" alt="increment" align="middle" /> ABC, show that:</div> <div>i) AB + AC> OB + OC</div> <div>ii)AB + BC+CA >OA+OB+OC</div> <div>iii) OA+OB+OC><img class="Wirisformula" src="https://images.topperlearning.com/topper/tinymce/integration/showimage.php?formula=41891f5e8ace60c819a1c76af3792a55.png" alt="1 half" align="middle" />(AB + BC + CA)</div>

**kumar.ashlesha**14th August 2014, 7:50 PM