prior learning

Question 1

Area of a parallelogram/rectangle

Answer 1

A = b×h , where b is the base, h is the height

Question 2

Area of a triangle

Answer 2

A = (1/2)×b×h,
where b is the base, h is the height

Question 3

Area of a trapezium

Answer 3

A = (1/2)×(a+b)×h , where a and b are the parallel sides, h is the height

Question 4

Area of a circle

Answer 4

A = π×r^2 , where r is the radius

Question 5

Circumference of a circle

Answer 5

C = 2×π×r , where r is the radius

Question 6

Volume of a cuboid

Answer 6

V = l×w×h , where l is the length, w is the width, h is the height

Question 7

Volume of a cylinder

Answer 7

V = π×(r^2)×h , where r is the radius, h is the height

Question 8

Volume of a prism/rectangle

Answer 8

V = Ah , where A is the area of cross-section, h is the height

Question 9

Area of the curved surface of
a cylinder

Answer 9

A = 2×π×r×h , where r is the radius, h is the height

Question 10

Distance between two
points (x1, y1) and (x2, y2)

Answer 10

d = sqrt[((x1-x2)^2)+((y1-y2)^2)]

Question 11

Coordinates of the midpoint of
a line segment with endpoints (x1, y1) and (x2, y2)

Answer 11

{[(x1+x2)/2], [(y1+y2)/2]}

Question 12

cos rule

Answer 12

(a^2)+(b^2)-(2ab×cosC)