Answer:
275.63 mm^2
Step-by-step explanation:
The measurements of the pyramids are
Edge length: 10
Egde width: 8.66 (because 10x8.66/2 = 43.3)
Height: 9
To find the surface area, use this formula, and you will get 275.63:
Answer:
15 points
Step-by-step explanation:
Let R be the event that a red card is drawn. There are two red suits of 13
cards each, so there are 26 ways of getting are red card. There are 52 cards
altogether, so the probability of getting a red card is
P(R) = 26
52
=
1
2
.
http://www.math.ttu.edu/~drager/Classes/02Spring/m1430/anse3.pdf