GRADE 11 QUESTIONS

What is your full name?

What is the formula for calculating the area of a sector of a circle?

In a circle, if the central angle is 45 degrees and the radius is 8 cm, what is the length of the corresponding arc?

• • 2π cm

• • 4π cm

• • 8π cm

• • 16π cm

In a right-angled triangle, if the lengths of the two shorter sides are 3 and 4 units, what is the length of the hypotenuse?

• • 5 units

• • 6 units

• • 7 units

• • 8 units

What is the exact value of cos 60 degrees?

• 
  

• 1

Calculate the exact value of tan 45 degrees.

• 1

• 60

If a set A = {1, 2, 3} and set B = {3, 4, 5}, what is the intersection of sets A and B

• • {1, 2, 3, 4, 5}

• • {3}

• • {1, 2}

• • {4, 5}

If P(A) = 0.6, P(B) = 0.4, and P(A ∩ B) = 0.2, what is P(A ∪ B)?

• • 0.2

• • 0.4

• • 0.6

• • 0.8

9. In a histogram, what do the vertical bars represent?

• • Standard Deviation

• • Mean

• • Frequency

• • Range