Chapter 11 Constructions- MCQ Online Test 2 Class 9 Maths

1. Two or more circles are concentric if they have same
(a) centers
(b) radius
(c) diameter
(d) none

2. If two circles touches internally then distance between their centres is equal to
(a) sum of radii
(b) not possible to determine
(c) difference of radii
(d) none

3. Radius of a circle is ________ to tangent
(a) perpendicular
(b) parallel
(c) No relation
(d) none

4. Two radii of same circle are always :
(a) parallel and may inclined at any angle
(b) may inclined at any angle
(c) perpendicular
(d) parallel

5. A quadrilateral can be drawn. If the measures of its
(a) four sides are given
(b) four angles and one side are given
(c) four sides and one angle are given
(d) three sides and a diagonal are given

6. The point in the plane of a triangle which is at equal perpendicular distances from the three sides of the triangle is its
(a) orthocenter
(b) centroid
(c) incentre
(d) circumcentre

7. The orthocentere of an obtuse angled triangle lies
(a) on the smallest side of the triangle
(b) on the greatest side of the triangle
(c) outside the triangle
(d) inside the triangle

8. If a 60°angle is bisected twice what will be measure of each angle that is constructed ?
(a) 45°
(b) 25°
(c) 15°
(d) 20°

9. On a ray AB with initial point A, Taking A as centre and some radius, draw an arc of a circle, which intersects AB, say at a point D. Taking D as centre and with the same radius as before, draw an arc intersecting the previously drawn arc, say at a point E. Draw the ray AC passing through E. Then, the measure of ∠CAB is
(a) 80°
(b) 68°
(c) 60°
(d) 90°

10. An external bisector of an angle measuring 70° will divide the angle into two angles measuring
(a) 25°
(b) 80°
(c) 45°
(d) 55°