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GEOMETRY AND POLYGONS + PRACTICAL GEOMETRY

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What is the centroid of a triangle?

A The point of intersection of the medians B The point of intersection of the altitudes C The point of intersection of perpendicular bisectors D The point of intersection of angle bisectors

What is the point equidistant from all sides of a triangle?

A Incenter B Circumcenter C Centroid D Orthocenter

How many altitudes can a triangle have?

A 3 B 1 C 2 D Infinite

What is the circumcenter of a right triangle?

A The midpoint of the hypotenuse B The right-angle vertex C Inside the triangle D Outside the triangle

What is the sum of interior angles of a regular polygon with 12 sides?

A 1800° B 2160° C 1440° D 1620°

The locus of a point that moves such that its distance from a fixed line is constant is:

A A circle B A pair of parallel lines C A line segment D A parabola

If two similar triangles have side lengths in ratio 3:5, what is the ratio of their areas?

A 3:5 B 9:25 C 27:125 D 6:10

The measure of each interior angle of a regular polygon is 150°. How many sides does it have?

A 10 B 12 C 15 D 18

If two similar polygons have areas in ratio 4:9, what is the ratio of their perimeters?

A 2:3 B 4:9 C 16:81 D 4:6

A triangle with sides 7 cm, 8 cm, and 15 cm:

A Cannot be constructed B Can be constructed with a right angle C Can be constructed as acute triangle D Can be constructed as obtuse triangle

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