Given:
Measure of the internal angles of the regular polygon
To find:
The missing measure of angle x.
Solution:
The clear image of the question is attached below.
Number of sides (n) = 8
<u>Sum of interior angles of a regular polygon:</u>
Sum = (n - 2) × 180°
Substitute n = 8.
105° + 110° + 150° + 125° + 110° + 159° + 160° + x = (8 - 2) × 180°
919° + x = 6 × 180°
919° + x = 1080°
Subtract 919° from both sides.
919° + x - 919° = 1080° - 919°
x = 161°
The measure of the internal angle x is 161°.
Answer:
The correct answer is B.
Explanation:
log106 + log1045 - log1027
log10
6
×
45
27
= log102 x 5
log1010 = 1
Step-by-step explanation:
Answer:
1624 units²
Step-by-step explanation:
See attachment for the figure
As, ∠EAB = ∠CFD
and ∠ABE = ∠FCD
We can say that by AA congruency, ΔCFD is similar to ΔBAE
Therefore, BA / EB = CF / DC
BA x DC = EB x CF (since EB = CF
)
BA x DC = EB²
28 x 58 = EB² => area of square BCFE
area of square BCFE = 1624 units²
Therefore, the area of square BCFE is 1624 units²
Just subtract each term from the next term.
So:
2nd term minus 1st term = 0.26 - 0.36 = -0.1
3rd term minus 2nd term = 0.16 - 0.26 = -0.1
etc
So common difference is -0.1
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