1.1 Arthimetic - Areas, Volumes and Surface Areas

Question 1

equation for area of a rectangle?

Answer 1

Area = Length x Width

Question 2

equation for area of a square?

Answer 2

Area = Side squared or length x width

Question 3

equation for area of a triangle?

Answer 3

area = 1/2 x (base x height)

Question 4

equation for area of a parallelogram?

Answer 4

area = base x height

Question 5

equation for area of a rhombus?

Answer 5

area = 1/2 x (diagonal 1 x diagonal 2)

or

area = base x height

Question 6

equation for area of a trapezium?

Answer 6

area = 1/2 x height x (base 1 + base 2)

Question 7

equation for area of a kite?

Answer 7

area = 1/2 x (diagonal 1 x diagonal 2)

Question 8

equation for area of a circle?

Answer 8

area = π x R squared

Question 9

equation for area of a sector of a circle?

Answer 9

area = (n° /360) x (π x R squared)

Question 10

equation for area of regular polygons?

Answer 10

area = 1/2 x apothem x number of sides (A=1/2aP)

P= number of sides x length of sides

Question 11

equation for area of right prism?

Answer 11

total area = 2 x (length x width) + (2 x length + 2 x width) x height)

or t = 2B + Ph
B = lw
P = 2l + 2w

Question 12

equation for volume of right prism?

Answer 12

volume = (length x width) x height

v = Bh
B = lw

Question 13

equation for volume of a pyramid?

Answer 13

volume = 1/3 x (width x length) x height

v = 1/3Bh
B = width x length

Question 14

equation for volume of a cylinder?

Answer 14

volume = π x radius squared x height

Question 15

equation for surface area of a cylinder?

Answer 15

surface area = 2 x π x radius x height + 2 x π x radius squared

T = 2πrh + 2πr squared

Question 16

equation for volume of a cone?

Answer 16

volume = 1/3 x π x radius squared x height

Question 17

equation for surface area of a cone?

Answer 17

surface area = π x radius x slant height + π x radius squared

Question 18

equation for volume of a sphere?

Answer 18

volume = 4/3 x π x radius cubed

Question 19

equation of surface area of a sphere

Answer 19

surface area = 4 x π x radius squared