QR Equations

Question 1

Sum of interior angles =

Answer 1

180(n-2)

Question 2

Diagonal of a box =

Answer 2

√L2 + W2 + H2

Question 3

SAcylinder =

Answer 3

2πr2 + 2πrh

Question 4

Area of a Circle =

Answer 4

πr2

Question 5

Standard deck of playing cards

Answer 5

52 Cards
4 Suits : Spades (Black), Clubs (Black), Hearts (Red), & Diamonds (Red)
each with 13 cards

Question 6

Permutation (order matters)

Answer 6

start with n & multiply down r # of times

Question 7

Combination (order does NOT matter)

Answer 7

multiply down r # of times then divide by r factorial

Question 8

Sum of a sequence =

Answer 8

[(1st term + last term)/2] (last term)