Suppose a game of 3-d tic tac toe is played on a 6x6x6 cube. how many winning lines of 6-in-a-row are there through the cube?

d) 30 units^2

area of rectangle = l × b

we know,

length = 10 unit

breadth = 3 unit

applying the formula,

= l × b

= 10 × 3

= 30 unit^2

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explanation:

remove parenthesis:

=

apply rule

=

multiply fractions:

=

=

divide:

=

mordancy.