= (1/2) (17.2) (7.1) sin (21.67)
= 22.5470 square meters
Fill in the blank. Given O below, you can conclude that xz is congruent to
2 answers:
Answer : The XZ is congruent to AC.
Step-by-step explanation :
First we have to prove ΔOBC and ΔOYX are congruent triangles.
Proof:
Side OC = Side OX (radius of same circle)
Side OB = Side OY (equal to 22)
∠B = ∠Y (equal to 90°)
ΔOBC ≅ ΔOYX (By SAS congruency)
So, Side BC = Side YX (By CPCT)
Similarly, Side AB = Side ZX
Or we can say that,
Chord XZ = Chord AC
Hence, the XZ is congruent to AC.
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Answer:
A. Yes.
B. Yes.
C. No.
Step-by-step explanation:
A. Yes. The sum of the series, is the sum of a geometric series.
The first term of the series = 5.
The common ration or the ratio between successive terms (r) = (Answer)
B. Yes. The sum of the series, is also the sum of a geometric series.
The first term of the series .
The common ration or the ratio between successive terms (r) = (Answer)
C. No. The sum of the series, is not the sum of a geometric series.
The first term of the series .
(Answer)
Answer:
Time required to make a pile of 45 sticks next to their fire = 10 minutes
Step-by-step explanation:
This is an example of arithmetic progression.
First term = 5 - 3 + 7 = 9 sticks
Common difference = 7 - 3 = 4 sticks.
So the number of sticks next to their fire is increasing like this
9, 13, 17, 21 .............
term of AP = a + (n-1) d, we need to find n
a + (n-1) d = 45
9 + (n-1) x 4 = 45
(n-1) x 4 = 36
n - 1 = 9
n = 10
Time required to make a pile of 45 sticks next to their fire = 10 minutes