Y10/11 Maths revision

Calculate the size of angle AOD and give a reason for your answer

• 104° because the center angle is thrice the angle at the circumference

• 26° because the center angle is half the angle at the circumference

• 104° because the center angle is twice the angle at the circumference

• 52° because the center angle is equal to the angle at the circumference

Which of the theorems mentioned below are part of the circle theorems ?

• Opposite angles in a cyclic quadrilateral sum to 180°

• The angle between the circumference and the tangent is equal to the angle in the alternate segment

• The angle in a semicircle is a 90° angle

• Angles in the same segment are equal

Work out the size of angle ODC

• 36°

• 78°

• 46°

• 63 °

Calculate the length of AC, correct to 3 significant figures

• 16.0 cm

• 12.6 cm

• 16.1 cm

• 15.2 cm

State the equation and the value of v when d=2.56

• 
  

  $d=v\sqrt{2}$ , v= 2.5

• $2=d\sqrt{v}$ , v=2.5

• $v=2\sqrt{d}$ , v=3.2

• $\sqrt{d=}2v$ , v=1.5

Work out the probability that the spinner lands on green and an estimate for the number of times the spinner lands on red if jenny spins the spinner 200 times

• The probability that the spinner will land on green is 0.14 and the spinner will land 80 times on red

• The probability that the spinner will land on green is 0.15 and the spinner will land 81 times on red

• The probability that the spinner will land on green is 1.5 and the spinner will land 79 times on red

• The probability that the spinner will land on green is 0.15 and the spinner will land 80 times on red

• None of the mentioned options

Write down the inequality shown on the number line

• $3\ge x\le9$

• $3\le x\ge9$

• $3<x\ge9$

• $3\le x<9$

• $3<x\le9$

What is the x and the y intercept of this graph ?

• x= (5,0) y= (0,6)

• x= (4,0) y= (0,3)

• x= (0,3) y= (4,0)

What are the sizes of angle x, y and z and state a reason for each?

• x= 50° (corresponding angles are equal), y= 51° (vertically opposite angle) and z= 50° (alternate interior angles are equal)

• x= 40° (angles in a triangle add up to 180°), y= 50° (alternate interior angles are equal) and z= 95° (supplementary to the other angle)

• x= 50° (corresponding angles are equal), y= 50° (vertically opposite angle) and z= 95° (supplementary to the other angle)

What is the size of angle x ?

• 190°

• 68°

• 109°

• 150°