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The sum of the angles of a triangle is equal to __________

(a) 270°

(b) 90°

(c) 180°

(d) 360°

I got this question by my school principal while I was bunking the class.

I would like to ask this question from Angle Sum Property of a Triangle topic in portion Triangles of Mathematics – Class 9

Which one is true if triangle ABC is congruent to triangle PQR?

(a) AB = PQ

(b) AB = QR

(c) BC = QR

(d) ∠A = ∠Q

This question was posed to me during a job interview.

This intriguing question comes from Triangles Basics in portion Triangles of Mathematics – Class 9

A triangle has __________ vertices.

(a) one

(b) two

(c) three

(d) four

The question was asked by my college professor while I was bunking the class.

Question is from Triangles Basics topic in chapter Triangles of Mathematics – Class 9

Curved surface area of a hemisphere is equal to 2772 cm^2, what is its volume? (Take π = \(\frac{22}{7}\))

(a) 19464 cm^3

(b) 19404 cm^3

(c) 19427 cm^3

(d) 19425 cm^3

The question was asked during an internship interview.

This interesting question is from Volume of a Sphere topic in chapter Surface Areas and Volumes of Mathematics – Class 9

Volume of a hemisphere of radius r is equal to __________

(a) \(\frac{4}{3} πr^3\)

(b) πr^2h

(c) \(\frac{1}{3}\) πr^2h

(d) \(\frac{2}{3} πr^3\)

I got this question in my homework.

Query is from Volume of a Sphere topic in portion Surface Areas and Volumes of Mathematics – Class 9

What is the volume of a cone having radius of 21cm and height of 5cm?

(a) 2310cm^3

(b) 2500cm^3

(c) 6930cm^3

(d) 7500cm^3

This question was posed to me in an internship interview.

I’d like to ask this question from Volume of a Right Circular Cone topic in chapter Surface Areas and Volumes of Mathematics – Class 9

A water is flowing through the tap at the rate of 50 cm^3/s. What is the time requires to fill the container of dimensions 20cm * 10cm * 10cm?

(a) 40 seconds

(b) 30 seconds

(c) 45 seconds

(d) 50 seconds

This question was addressed to me in an interview for job.

Query is from Volume of a Cuboid in chapter Surface Areas and Volumes of Mathematics – Class 9

Volume of a cube of sides equal to l is given by __________

(a) l * b * h

(b) l^3

(c) l^2

(d) π * l * b * h

The question was posed to me in my homework.

I’d like to ask this question from Volume of a Cuboid topic in chapter Surface Areas and Volumes of Mathematics – Class 9

A water tank of dimensions 2m * 3m * 1.5m is to be painted leaving its base. Find the total cost of painting the tank if rate of painting = ₹20/m^2.

(a) ₹540

(b) ₹500

(c) ₹420

(d) ₹400

This question was addressed to me during a job interview.

My doubt is from Surface Area of a Cuboid and a Cube in chapter Surface Areas and Volumes of Mathematics – Class 9

A hollow sphere of outer radius of 4 cm and thickness of 3 cm is to be made from metal. What is the total amount of metal required (in cm^3) to make the sphere? (Take π = \(\frac{22}{7}\))

(a) 281

(b) 264

(c) 225

(d) 227

The question was posed to me during an online interview.

I want to ask this question from Volume of a Sphere topic in portion Surface Areas and Volumes of Mathematics – Class 9

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