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Math Fundamentals Quiz

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Questions and Answers

Which of the following is the formula for the area of a circle?

π/2r
πr² (correct)
πr
2πr

What is the value of pi (π) to two decimal places?

3.141
3.14 (correct)
3.139
3.142

In a right-angled triangle, what is the relationship between the lengths of the sides opposite the two acute angles?

They are proportional to the hypotenuse
They are equal
Their product is equal to the length of the hypotenuse
Their sum is equal to the length of the hypotenuse (correct)

What is the value of the hypotenuse in a right-angled triangle with sides of length 6 and 8?

10 (C) Signup and view all the answers

What is the value of sin(60°) in a right-angled triangle?

√3/2 (C) Signup and view all the answers

If the radius of a circle is 5 cm, what is the approximate area of the circle?

31.4 cm² (B) Signup and view all the answers

Flashcards

Area of a circle?

Area equals pi times the radius squared.

Value of Pi (π)

Pi (π) is approximately 3.14.

Pythagorean Theorem

The sum of the squares of the two shorter sides equals the square of the longest side (hypotenuse).

What is Sine (SOH)?

It means opposite/hypotenuse.

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Area of circle, radius 5 cm?

Approximately 78.5 cm².