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The lines, which can never intersect each other are called_______
A) Perpendicular lines
B) Parallel lines
C) Converging lines 
D) 
Concurrent lines

b

Explanation: Parallel lines are those lines that are equidistant from each other and never meet, no matter how much they may be extended in either directions.


Scalar matrix is a special case of a……
a) identity matrix
b) transpose matrix
c) zero matrix                      
d) diagonal matrix

d

With every square matrix A, a unique real number is associated which is called the ______ of A.
A) Adjoin                             
B) Inverse
C) Transpose                       
D) Determinant

d

Explanation: With every square matrix A, a unique real number is associated which is called the D) Determinant of A.
The determinant is a scalar value associated with a square matrix that provides important information about the matrix's properties and behavior. It is denoted by det(A) or |A|. The determinant of a matrix can be used to determine if a matrix is invertible (non-singular) or not. It also plays a crucial role in solving systems of linear equations, calculating matrix inverses, and determining the area or volume scaling factor in geometric transformations.



The point of concurrency of the three angle bisectors of a triangle is called the ____ of the triangle.
A) Centroid                          
B) Median
C) In center                        
D) None of these

c

Explanation: The three angle bisectors of a triangle intersect at a single point. The point of concurrency of the angle bisectors is called the incenter.


Tone is created by adding _____ to a color.
A)  Black                             
B) Brown
C) White                                               
D) Grey

d

Explanation: Color with gray added to it is called tone.
Color with white added to it is called...tint



We use a lot of water in watercolor painting which causes the paper to buckle, this can be spoil  the painting as all the paint will flow down to deeps areas in order, to deal with this problem, we must ____ the watercolor sheet before painting on.
A) Stretch                            
B) Iron
C) Dry                                   
D) All of these

a

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