Answer:
Step-by-step explanation:
Since, If a quadrilateral is inscribed in a circle then the sum of one pair of opposite angles must be equal to 180°.
And, here quadrilateral OPQR is inscribed in circle N.
Thus, -------(1)
And, -------(2)
According to the question,,
And, -------(3)
We have to find out or .
Thus, from equation (1), ⇒
Therefore, From equation (3),
⇒
3x+2=50
subtract 2 from both sides
3x=48
divide both sides by 3
x= 16
so 16 friends went to his party
Answer:
C
Step-by-step explanation:
There are 54 cards in a deck with jokers. Two are jokers.
2/54=1/27
K = 84/7 = 12
(156 - x)/12 = x
12x = 156 - x
13x = 156
x = 12
AC = 156 - 12
AC = 144