Maths

Question 1

Angle at centre is

Answer 1

twice angle at circumference

Question 2

Angles in the same segment

Answer 2

are equal

Question 3

Opposite angles in a cyclic quad

Answer 3

sum up to 180 degrees

Question 4

Angle in a semi-circle is

Answer 4

a right angle

Question 5

Triangle with 2 radii is

Answer 5

an isoceles triangle

Question 6

Radius and tangent meet at

Answer 6

a right angle

Question 7

2 tangents from the same point are

Answer 7

equal

Question 8

Angle between tangent and chord equal angle in

Answer 8

alternate segment

Question 9

1km squared is equal to

Answer 9

1000000m squared

Question 10

1m cube is equal to

Answer 10

1000000cm cubed

Question 11

Area of circle

Answer 11

πr²

Question 12

Area of right angle triangle

Answer 12

1/2 base x perpendicular height

Question 13

Area of scalene triangle

Answer 13

1/2 ab Sinθ

Question 14

Area of trapezium

Answer 14

1/2(a+b)h

Question 15

Area of parallelogram

Answer 15

base x perpendicular height

Question 16

Volume of a cylinder

Answer 16

πr²h

Question 17

Volume of prism

Answer 17

Area of cross section x depth

Question 18

Volume of pyramid or cone

Answer 18

1/3 x area of base x height

Question 19

Volume of frustrum

Answer 19

volume of full cone - volume of small cone

Question 20

Curved surface area of cylinder

Answer 20

2πrh

Question 21

Area of segment

Answer 21

Area of sector - area of triangle

Question 22

Area of sector

Answer 22

θ/360 x πr²