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Questions and Answers
Which of the following is the formula for the area of a circle?
Which of the following is the formula for the area of a circle?
- π/2r
- πr² (correct)
- πr
- 2Ï€r
What is the value of pi (Ï€) to two decimal places?
What is the value of pi (Ï€) 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?
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?
What is the value of the hypotenuse in a right-angled triangle with sides of length 6 and 8?
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What is the value of sin(60°) in a right-angled triangle?
What is the value of sin(60°) in a right-angled triangle?
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If the radius of a circle is 5 cm, what is the approximate area of the circle?
If the radius of a circle is 5 cm, what is the approximate area of the circle?
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