How do I find the surface area of a cube and a square pyramid?
1 answer:
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Answer:
Geometric probability of an object hitting a circular hole is 0.0245.
Step-by-step explanation:
We have given,
A board of size 48 by 24 inch. There is a circular hole in the board having diameter 6 inches.
So,
Area of a board = 48 × 24 = 1152 square inches
And area of circular hole = π×r² {where r = diameter/2 = 6 / 2 = 3 inches}
Area of circular hole = π×3² = 9π = 28.27 square inches
Now, we need to find the geometric probability of an object will hit the circle.
Geometric probability = Area of circular hole / Area of board
Geometric probability =
Geometric probability = 0.0245
hence geometric probability of an object hitting a circular hole is 0.0245.
Answer:
b=204
Step-by-step explanation:
The law of sine states that:
We know that a triangle has 180° total, so we can subtract the two angle measures we know to find the third angle: °.
Using these two things, we can come up with the equality , which we can use to solve for side b.
, so we know that
.
Next, we would multiply both sides by b to get .
Sin49°≈0.75471, so to find b we would multiply 0.75471×270=203.77
Since the problem asks us to round to the nearest whole number, b=204
Hope this helps! :)