Basic Geometrical Ideas Test

Result

Basic Geometrical Ideas Test - 20

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Question 1
1 / -0

How many diagonals does a hexagon have ?

A
$$ 9 $$

B
$$ 8 $$

C
$$ 2 $$

D
$$ 6 $$

Solution

The polygon of $$ n $$ sides $$ = \dfrac{n(n - 3)}{2} $$

Hexagon has $$ 6 $$ sides $$ = \dfrac{6 (6 - 3)}{2} = 9 $$
Question 2
1 / -0

The pair of adjacent sides in the given quadrilateral is ___.

A
AB, BC

B
AB, CD

C
BC, AD

D
None of these.

Solution
Question 3
1 / -0

The center of the circle lies

A
in the interior of the circle

B
in the exterior of the circle

C
on the circle

D
None of these

Solution
Question 4
1 / -0

Which of the given figures is a quadrilateral?

A

B

C

D
none of the above

Solution
Question 5
1 / -0

In the given figure, $$r$$ represents

A
Radius

B
Diameter

C
Tangent

D
Chord

Solution

$${\textbf{Step -1: Find r.}}$$

$${\text{The distance from the center point to any point on the circle is called the radius of a circle}}$$

$${\text{Here, r is the radius in the figure.}}$$

$${\textbf{Hence, the correct answer is option A.}}$$
Question 6
1 / -0

Which two triangles have $$\angle B$$ as common?

A
$$\triangle ABD \ and \ \triangle ADC$$

B
$$\triangle ABD \ and \ \triangle ABC$$

C
$$\triangle ABC \ and \ \triangle ADC$$

D
None of these.

Solution
Question 7
1 / -0

In the adjoining figure, $$18 in$$ is the length of

A
Radius

B
Diameter

C
Any chord other than the diameter

D
None of these

Solution
Question 8
1 / -0

The shaded portion of the circle represents

A
Semicircle

B
Diameter

C
A sector of the circle

D
Segment
Question 9
1 / -0

A chord divides a circle into two

A
Diameter

B
Semicircle

C
Sectors

D
Segments

Solution
Question 10
1 / -0

The centres of a set of circle,

each of radius $$ 3$$, lies on the circle $$x^2 + y^2 = 25$$. The locus of any

point in the set is

A
$$4\leq x^2+y^2\leq 64$$

B
$$ x^2+y^2\leq 25$$

C
$$ x^2+y^2\geq 25$$

D
$$3\leq x^2+y^2\leq 9$$