Isosceles Triangle

Q.

Two sides of an isosceles triangle are 4 cm each. If the perimeter is 14 cm, then length of the third side is-

1. 6"
2. 8"
3. 3"
4. 11"

Q. If exactly two sides of a triangle are equal, then it is called a/an _______.

1. scalene triangle
2. isosceles triangle
3. equilateral triangle
4. obtuse angled triangle

Q.

Match the following

1. 1- c; 2- a; 3- b

2. 1- a; 2- c; 3- b

3. 1- a; 2- b; 3- c

4. 1- c; 2- b; 3- a

Q.

In an isosceles $△ABC$, if $\angle ACB=\angle CAB$, then

1. AB = AC

2. BC = AC

3. AB = BC

4. None of them

Q.

An isosceles triangle is one in which __ sides are equal. (Write a number)

Q.

The value of $x^{\circ }$ in the given figure is _______

1. ${60}^{\circ }$
   

2. ${30}^{\circ }$
   

3. ${15}^{\circ }$

4. ${45}^{\circ }$
   

Q.

$△$ABC is an isosceles triangle, in which AB=AC. Side BA is produced to D such that AD=AB. $\angle$BCD is equal to ___.

1. 

2. 

3. 

4. Can not be determined

Q. If a triangle has two equal sides, then it is known as triangle.

1. a scalene
2. an isosceles
3. an equivalent
4. a right

Q. ABC is an isosceles triangle with AB = AC. Find the value of x.

1. 20
2. 30
3. 65
4. 25

Q. In an isosceles triangle if one angle is 120, find the measure of other two angles(in degrees).

1. 120, 30
2. 30, 30
3. 120, 20
4. 20, 20