Circumcentre and Its Construction

Q. The six elements of a triangle are:

1. three angles
2. two planes and one side
3. three sides
4. depends on the type of the triangle

Q. In a right angled triangle, hypotenuse is 20 cm. Find the radius of the circumcircle.

1. 5 cm
2. 15 cm
3. 10 cm
4. 20 cm

Q.

The circumcentre of a triangle is equidistant from its .

Q. In a right angled triangle, hypotenuse is 6 cm. Find the radius of circumcircle.

1. 3 cm
2. 6 cm
3. 9 cm
4. 12 cm

Q. For a right angled triangle ABC (right angled at A), what is the location of the incentre?

1. on A
2. on BC
3. Outside ABC
4. Inside ABC

Q.

1. Congruent

2. Right

3. Acute

4. Obtuse

Q. In a right angled triangle, hypotenuse is 6 cm. Find the radius of circumcircle.

1. 3 cm
2. 9 cm
3. 12 cm
4. 6 cm

Q. In a right angled triangle, hypotenuse is 20 cm. Find the radius of the circumcircle.

1. 5 cm
2. 10 cm
3. 15 cm
4. 20 cm

Q. For a right angled triangle ABC (right angled at A), what is the location of the incentre?

1. on BC
2. Inside ABC
3. Outside ABC
4. on A

Q. Identify the parts of the triangle?

1. Altitude
2. Median
3. Vertex
4. Base

Q. In a right angled triangle, hypotenuse is 6 cm. Find the radius of circumcircle.

Q. For a right angled triangle ABC (right angled at A), what is the location of the incentre?

1. Outside ABC
2. on A
3. Inside ABC
4. on BC

Q. Locate circumcentre of the triangle shown below.
[3 Marks]

Q. Concurrence of perpendicular bisectors of the sides of a triangle is known as incentre.

1. True
2. False

Q. The _______ is the centre of a circle which passes through all vertices of the triangle.

1. Incentre
2. Circumcentre
3. Orthocentre
4. Centroid

Q. In a right angled triangle, hypotenuse is 10 cm. Find the radius of circumcircle.

1. 20 cm
2. 5 cm
3. 10 cm
4. 15 cm