Chapter 5

A( 0, 5), B( 5,0) and C( -4,-7) are vertices of a triangle then its centroid will be at _____.

• (3,-2)

• (1/3, 2/3)

• (1/3, -2/3)

• (-3,-2)

• Circle

• Parabola

• Straight line

• triangle

The first degree equation in two variables ax + by+ c = 0 represents a ________ in a plane.

• parabola

• circle

• straight line

• triangle

The co-ordinates of the point which divides the line segment externally joining (-7,13) and (-3,1) in the ratio 1:7 is ____

• (13,15)

• (-13/3, 5)

• (-13/3, -5)

• (-13,15)

The vertices of triangle PQR are P(0,-4), Q(3,1), R(-8,1). M,P,N are the midpoints of the sides PQ, QR, PR. Then what is the ratio between the areas of triangle MPN and triangle PQR ?

• 1:4

• 4:1

• 1:3

• 3:1

If the area of a quadrilateral formed by the points (a, a), (–a, a), (a, –a) and (–a, –a), where a is not equal to 0 is 64 square units, then identify the type of the quadrilateral.

• rectangle

• Square

• Trapezium

• Parallelogram

_______ is the angle which a straight line makes with the positive direction of X - axis

• slope

• inclination

• angle of inclination

• positive

The inclination of X axis and every line parallel to X axis is ____

• 90⁰

• 0⁰

• 180⁰

• 360⁰

The inclination of Y axis and every line parallel to Y axis is

• 0⁰

• 90⁰

• 60⁰

• 180⁰

The measure of steepness is called ______.

• slope or gradient

• steepness

• vertices

• none