Geometry & Mensuration
148 questions available
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Q141.A hexagon has six sides and how many angles?
Correct Answer: A
By definition, a hexagon is a polygon with 6 sides, 6 angles, and 6 vertices.
Q142.An angle less than _____ is called an acute angle.
Correct Answer: C
An acute angle is strictly less than 90°. A 90° angle is a right angle.
Q143.What is the measure of a straight angle?
Correct Answer: C
A straight angle measures exactly 180° and appears as a straight line.
Q144.Ali stands 10 meters from a tree. His eyes are 1.5 meters from his feet, and the distance from his eyes to the top of the tree is 15 meters. What is the height of the tree according to the source?
Correct Answer: B
As per the site database logic: Total height = Eye-level height (1.5m) + Eye-to-top distance (15m) = 16.5 meters.
Q145.The volume of a rectangular solid is 1,440 cubic inches. If the height is 3 inches, what could be its length and width?
Correct Answer: C
Volume = length × width × height. Since height is 3: Volume = length × width × 3 = 1440. Thus, length × width = 480. Among the options, 10 inches by 48 inches gives 10 × 48 = 480.
Q146.A quadrilateral has how many sides?
Correct Answer: C
By definition, a quadrilateral is a 4-sided polygon.
Q147.What is the missing number representing sides of a hexagon in: triangle (3), rectangle (4), hexagon (?)
Correct Answer: D
A triangle has 3 sides, a rectangle has 4 sides, and a hexagon has 6 sides.
Q148.A triangle that has 3 equal angles is called:
Correct Answer: C
A triangle with three equal angles is called an equilateral triangle. Each angle in an equilateral triangle is exactly 60 degrees, and all three sides are equal.