Equilateral Triangle and Its Properties

Q. Each angle in an equilateral triangle is .

1. 45${}^{\circ }$
2. 60${}^{\circ }$
3. 75${}^{\circ }$

Q.

Two complementary angles are in the ratio of $7:8$. Find the angles

Q. $\text{Find the value of x.}$

1. ${30}^{\circ }$
2. ${60}^{\circ }$
3. ${120}^{\circ }$
4. ${90}^{\circ }$

Q.

In the figure given, what are the values of b, c, and a respectively?

1. ${18}^{\circ },{70}^{\circ },and{92}^{\circ }$

2. ${92}^{\circ },{70}^{\circ },and{18}^{\circ }$

3. ${70}^{\circ },{92}^{\circ },and{18}^{\circ }$

4. ${70}^{\circ },{18}^{\circ },and{92}^{\circ }$

Q.

In the quadrilateral ABCD, AB = 2 cm, BC = 3 cm, CD = 5 cm and AD = 4 cm, then relation between $\angle B$ and $\angle D$ is?

1. $\angle B>\angle D$

2. $\angle B<\angle D$

3. $\angle B=\angle D$

4. None of these

Q.

The orthocentre of the obtuse angle lies inside of a triangle

1. True

2. False

Q.

In $△ABC$, $AB=AC$ and $\angle B={40}^{\circ }$. What type of triangle is this ?

1. 6m, equilateral triangle

2. 4 m, Isosceles triangle

3. 6 m, Isosceles triangle

4. 4 m, equilateral triangle

Q. Each angle in an equilateral triangle is .

1. 45${}^{\circ }$
2. 60${}^{\circ }$
3. 75${}^{\circ }$

Q.

Angle ADC measures ___.

1. 60°

2. 90°

3. 120°

4. 30°

Q. In the figure given, what are the values of a, b and c respectively?

1. ${18}^{\circ },{92}^{\circ }and{70}^{\circ }$
2. ${92}^{\circ },{70}^{\circ }and{18}^{\circ }$
3. ${18}^{\circ },{70}^{\circ }and{92}^{\circ }$
4. ${70}^{\circ },{18}^{\circ }and{92}^{\circ }$

Q.

Find the measure of y in the given figure.

1. ${30}^{\circ }$
2. ${60}^{\circ }$
3. ${90}^{\circ }$
4. ${120}^{\circ }$

Q.

Each angle in an equilateral triangle measures ___.

1. 60°

2. 75°

3. 90°

4. 45°

Q.

$\text{In the figure below,}\Delta ABC\text{is an}\text{equilateral triangle and EC = CD. What}\text{is the measure of}\angle EDC?$

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

2. ${50}^{\circ }$

3. ${40}^{\circ }$

4. ${30}^{\circ }$