GEOMETRY AND POLYGONS + PRACTICAL GEOMETRY

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1. The incenter of a triangle is the point of concurrency of:

A Angle bisectors

B Medians

C Altitudes

D Perpendicular bisectors

2. If the ratio of volumes of two similar spheres is 1:8, what is the ratio of their radii?

A 1:2

B 1:4

C 1:8

D 1:16

3. What is the sum of interior angles of a regular hexagon?

A 360°

B 540°

C 720°

D 900°

4. What is the centroid of a triangle also known as?

A Center of gravity

B Center of the circumcircle

C Center of the incircle

D Intersection of altitudes

5. What is the point of intersection of the perpendicular bisectors of the sides of a triangle called?

A Circumcenter

B Orthocenter

C Centroid

D Incenter

6. If two similar rectangles have corresponding sides in ratio 2:5, what is the ratio of their areas?

A 2:5

B 4:25

C 8:125

D 4:10

7. Which of the following conditions is sufficient to construct a unique triangle?

A Three sides (SSS)

B Two angles and a non-included side

C Two sides and a non-included angle

D Three angles

8. Can a triangle be constructed if two sides and the included angle are given?

A Yes, by SAS criterion

B Yes, but only one triangle is possible

C No, not sufficient information

D Yes, if the angle is obtuse

9. How many perpendicular bisectors does a triangle have?

A 3

B 1

C 2

D 6

10. What is the sum of interior angles of a quadrilateral?

A 180°

B 270°

C 360°

D 540°

GEOMETRY AND POLYGONS + PRACTICAL GEOMETRY

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