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triciamarler
19.08.2019 •
Mathematics
Square abcd is inscribed in circle p, with a diagonal that is 18 centimeters long. find the exact length of the apothem of square abcd.
a. 18√2
b. 9√2
c. 9√2 over 2
d. 9 over 2
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Ответ:
C
Step-by-step explanation:
The Square ABCD inscribed in a circle is shown in the picture attached.
The diagonal is broken down into two 9 cm parts as shown. We letLet's find the side length of the square using pythagorean theorem:
Since,
is HALF of SIDE LENGTH,
is:
Since,
and
are equal, we can say ![y=\frac{9\sqrt{2}}{2}](/tpl/images/0179/1468/545cb.png)
Apothem's length is
. Answer choice C is right.
Ответ:
The probability of choosing of the blue tile and flip a coin are
1. P(BT) = 1/7 = 4
2. P(H or T) = 1/2 = 1.5
Step-by-step explanation:
1. P(BT) = 1/7
P(BT) = 1/7 + 2/7+ 3/7 + 4/7 + 5/7 + 6/7 + 7/7 = 1 + 2 + 3 + 4 + 5 + 6 + 7 = 28/7
P(BT) = 4
2. P(H or T) = 1/2 + 2/2 = 1 + 2/2 = 3/2 = 1.5