In how many ways can 3 cards from a deck of 52 cards can be laid in a row face up?
2 answers:
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Answer:
CD= 34
Step-by-step explanation:
As CD is the diameter the circle divides to half and point E is on the circle ∴∠CED =90° (angle of a semi circle)
as CD is the diameter it would be the lengthiest of all ∴ CD is hypotenuse
so
= CD=
=CD=
∴CD=34
Since 3 feet = 1 yard, Colin needs 3 cubes on each edge. (See picture below.)
In that picture, you'll also see that there are 9 cubes on one layer and there are three layers.
9x3 = 27
