Basic Geometrical Ideas Test

Result

Basic Geometrical Ideas Test - 18

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Weekly Quiz Competition

Question 1
1 / -0

Which of the following statement(s) is/are false with respect to quadrilateral?

A
Each diagonal of a quadrilateral divides it into two triangles.

B
Each side of a quadrilateral is less than the sum of the remaining three sides.

C
A quadrilateral can at-most have three obtuse angles.

D
A quadrilateral has four diagonals.

Solution

Option A is true. As each diagonal of a quadrilateral divides it into two triangles.
Option B is also correct as it is not possible to construct a quadrilateral with one side greater than the sum of three other sides.
Option C is also true. A quadrilateral can at most have three obtuse angles. All the four angles cannot be obtuse and sum of 4 angles of a quadrilateral is $$360^\circ$$.
Option D is incorrect. A quadrilateral does not have four diagonals.
A quadrilateral has exactly two diagonals.
So, option (D) is false
Question 2
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The portion of a circle between two radii and an arc is called

A
Sector

B
Segment

C
Chord

D
Secant

Solution

Sector of a circle is the portion of a disk enclosed by two radii and an arc. The smaller area is known as the minor sector and the larger as the major sector.
So option A is the correct answer.
Question 3
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Which of the following is/are an example(s) of simple closed curve?

A
Circle

B
Rectangle

C
Square

D
All of the above

Solution

A curve that does not cross itself and ends at the same point where it begins, is called a simple closed curve.
Therefore, $$D$$ is the correct answer.
Question 4
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Which one among the given figures can be called as a line?

A
Figure $$1$$

B
Figure $$2$$

C
Figure $$3$$

D
Figure $$4$$

Solution

A line is a straight path, having no bends and extends infinitely on both the sides or we can say that a line is a path having no end points.
Thus a line has no fixed length.
Therefore, among the given figures, only figure $$1$$ represents a line.

Hence, $$Op-A$$ is correct.
Question 5
1 / -0

Name the figure drawn below

A
Line segment AB

B
Line AB

C
Ray AB

D
None of these

Solution

As we know that line segment is path having two end points on both the sides and thus it has fixed length.
Hence, A will be correct answer.
Question 6
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Three or more lines are ______, if they pass through a common point.

A
Parallel

B
Collinear

C
Intersecting

D
All of these
Question 7
1 / -0

The two rays of an angle are called _____ of the angles.

A
Lines

B
Two arms

C
Two parts

D
None of these

Solution
Question 8
1 / -0

A pair of lines which do not intersect a point is called _______ lines.

A
Perpendicular

B
Parallel

C
Concurrent

D
Intersecting
Question 9
1 / -0

If the perimeter and the area of a circle are numerically equal, then the radius of the circle is

A
$$2\ units$$

B
$$p\ units$$

C
$$4\ units$$

D
$$7\ units$$

Solution

Given,
Numerically perimete of the circle is equal to area of circle

$$\Rightarrow 2\pi r=\pi r^2$$

$$\Rightarrow 2=r$$

$$\therefore r=2$$
Question 10
1 / -0

Which of the following is line segment?

A

B

C

D

Solution

A line segment is a straight path, having no bends and has two end points.

Thus a line segment has a definite length.

Hence, A will be correct answer.