Question 1
2-D geometry has ______________ quadrants.
A. 1
B. 2
C. 4
D. 8
View Answer
Answer: Option C
Explanation:
2-D geometry can have 2 coordinates each with positive or negative value.Total quadrants = 2*2 = 4.
Question 2
3-D geometry has ______________ octants.
A. 1
B. 2
C. 4
D. 8
View Answer
Answer: Option D
Explanation:
3-D geometry can have 3 coordinates each with positive or negative value.Total octants = 2*2*2 = 8.
Question 3
Find the distance of point (2, 3, 5) from X-Y plane.
A. 2 units
B. 3 units
C. 5 units
D. 1 unit
View Answer
Answer: Option C
Explanation:
We know, distance of a point from X-Y plane is equal to the value of its z-coordinate.So, distance of point (2, 3, 5) from X-Y plane is 5 units.
Question 4
Find the distance of point (2, 3, 5) from X-Z plane.
A. 2 units
B. 3 units
C. 5 units
D. 1 unit
View Answer
Answer: Option B
Explanation:
We know, distance of a point from X-Z plane is equal to the value of its y-coordinate.So, distance of point (2, 3, 5) from X-Z plane is 3 units.
Question 5
Find the distance of point (2, 3, 5) from Y-Z plane.
A. 2 units
B. 3 units
C. 5 units
D. 1 unit
View Answer
Answer: Option A
Explanation:
We know, distance of a point from Y-Z plane is equal to the value of its x-coordinate.So, distance of point (2, 3, 5) from Y-Z plane is 2 units.
Question 6
In which octant does the point (-1, – 5, -7) lies?
A. 1st
B. 2nd
C. 6th
D. 7th
View Answer
Answer: Option D
Explanation:
Since the point with all negative coordinates i.e. of the form (-, -, -) lie in 7th octant.So, (-1, – 5, -7) lies in 7th octant.
Question 7
In which octant does the point (1, 5, 7) lies?
A. 1st
B. 2nd
C. 6th
D. 7th
View Answer
Answer: Option A
Explanation:
Since the point with all positive coordinates i.e. of the form (+, +, +) so lie in 1st octant.So, (1, 5, 7) lies in 1st octant.
Question 8
In which octant does the point (-1, 5, 7) lies?
A. 1st
B. 2nd
C. 6th
D. 7th
View Answer
Answer: Option B
Explanation:
Since the point with only x coordinate negative i.e. of the form (-, +, +) lie in 2nd octant.So, (-1, 5, 7) lies in 2nd octant.
Question 9
In which octant does the point (-1, 5, -7) lies?
A. 1st
B. 2nd
C. 6th
D. 7th
View Answer
Answer: Option C
Explanation:
Since the point with only y coordinate positive i.e. of the form (-, +, -) lie in 6th octant.So, (-1, 5, -7) lies in 6th octant.
Question 10
The point (0, 0, 3) lie on ____________
A. X-axis
B. Y-axis
C. Z-axis
D. X-Y plane
View Answer
Answer: Option C
Explanation:
In 3d coordinate system, a point with x and y coordinate zero and z-coordinate having non-zero value must lie on z-axis. So, (0, 0, 3) lie on z-axis.
Question 11
The point (0, 2, 0) lie on _________
A. X-axis
B. Y-axis
C. Z-axis
D. X-Y plane
View Answer
Answer: Option B
Explanation:
In 3d coordinate system, a point with x and z coordinate zero and y-coordinate having non-zero value must lie on y-axis. So, (0, 2, 0) lie on y-axis.
Question 12
The point (0, 2, 4) lie on _________
A. X-Y plane
B. Y-Z plane
C. X-Z plane
D. X-axis
View Answer
Answer: Option B
Explanation:
In 3d coordinate system, a point with x-coordinate zero and y & z coordinate having non-zero value must lie on Y-Z plane. So, (0, 2, 4) lie on Y-Z plane.
Question 13
The point (3, 0, 4) lie on _________
A. X-Y plane
B. Y-Z plane
C. X-Z plane
D. X-axis
View Answer
Answer: Option C
Explanation:
In 3d coordinate system, a point with y-coordinate zero and x & z coordinate having non-zero value must lie on X-Z plane. So, (3, 0, 4) lie on X-Z plane.
Question 14
The point (4, 0, 0) lie on _____________
A. X-axis
B. Y-axis
C. Z-axis
D. Y-Z plane
View Answer
Answer: Option A
Explanation:
In 3d coordinate system, a point with y and z coordinate zero and x-coordinate having non-zero value must lie on x-axis. So, (4, 0, 0) lie on x-axis.
Question 15
The point (4, 2, 0) lie on _________
A. X-Y plane
B. Y-Z plane
C. X-Z plane
D. X-axis
View Answer
Answer: Option A
Explanation:
In 3d coordinate system, a point with z-coordinate zero and x & y coordinate having non-zero value must lie on X-Y plane. So, (4, 2, 0) lie on X-Y plane.