Mensuration Important 20 question
Question 1: The sum of the interior angles of a triangle is:
A) 90 degrees
B) 180 degrees
C) 270 degrees
D) 360 degrees
Answer: D) 360 degrees
Question 2: If the radius of a circle is 5 centimeters, what is its circumference?
A) 10 centimeters
B) 15 centimeters
C) 25 centimeters
D) 31.42 centimeters
Answer: D) 31.42 centimeters
Question 3: The area of a rectangle with a length of 8 meters and a width of 5 meters is:
A) 8 square meters
B) 13 square meters
C) 26 square meters
D) 40 square meters
Answer: D) 40 square meters
Question 4: What is the volume of a cube with an edge length of 3 inches?
A) 6 cubic inches
B) 9 cubic inches
C) 18 cubic inches
D) 27 cubic inches
Answer: B) 9 cubic inches
Question 5: In a right triangle, if one leg has a length of 4 units and the other leg has a length of 3 units, what is the length of the hypotenuse?
A) 5 units
B) 6 units
C) 7 units
D) 8 units
Answer: A) 5 units
Question 6: The perimeter of a square garden with each side measuring 10 feet is:
A) 20 feet
B) 30 feet
C) 40 feet
D) 50 feet
Answer: C) 40 feet
Question 7: What is the area of a circle with a radius of 6 inches?
A) 12 square inches
B) 18 square inches
C) 24 square inches
D) 36 square inches
Answer: D) 36 square inches
Question 8: If two angles of a triangle measure 45 degrees and 60 degrees, what is the measure of the third angle?
A) 15 degrees
B) 30 degrees
C) 45 degrees
D) 60 degrees
Answer: A) 15 degrees
Question 9: The total surface area of a cube with a side length of 4 centimeters is:
A) 8 square centimeters
B) 16 square centimeters
C) 32 square centimeters
D) 64 square centimeters
Answer: C) 32 square centimeters
Question 10: What is the perimeter of a rectangle with a length of 12 meters and a width of 8 meters?
A) 16 meters
B) 32 meters
C) 40 meters
D) 48 meters
Answer: D) 48 meters
Question 11: In construction, which geometric shape is often used as the base of a pyramid or a cone?
A) Triangle
B) Square
C) Rectangle
D) Circle
Answer: B) Square
Question 12: When measuring the area of a rectangular field, what are the units of the result?
A) Cubic units
B) Square units
C) Linear units
D) None of the above
Answer: B) Square units
Question 13: What is the term for a straight line that touches a curve at a single point without crossing it?
A) Chord
B) Diameter
C) Tangent
D) Radius
Answer: C) Tangent
Question 14: In a right triangle, which side is opposite to the right angle?
A) Hypotenuse
B) Base
C) Altitude
D) None of the above
Answer: A) Hypotenuse
Question 15: What is the measurement unit for the interior angles of a polygon?
A) Degrees
B) Radians
C) Inches
D) Feet
Answer: A) Degrees
Question 16: Which geometric shape best represents the cross-section of a cylinder?
A) Circle
B) Rectangle
C) Triangle
D) Hexagon
Answer: A) Circle
Question 17: In navigation, what do we call the angle measured clockwise from the North direction?
A) Latitude
B) Longitude
C) Azimuth
D) Altitude
Answer: C) Azimuth
Question 18: What is the formula for calculating the volume of a sphere?
A) V = πr²
B) V = 2Ï€r
C) V = (4/3)πr³
D) V = 1/2 * πd
Answer: C) V = (4/3)πr³
Question 19: In a parallelogram, opposite sides are:
A) Congruent and parallel
B) Congruent and perpendicular
C) Congruent and intersecting
D) None of the above
Answer: A) Congruent and parallel
Question 20: What is the perimeter of a square garden with each side measuring 12 feet?
A) 12 feet
B) 24 feet
C) 36 feet
D) 48 feet
Answer: C) 36 feet