1080o
1260o
1800o
2160o
Correct answer is B
Each interior angle = 140
\(\frac{(n - 2) \times 180}{n} = 140\)
(n - 2) x 180 = 140n
150 - 360 = 140n
180m - 140n = 360
40n - 360
n = \(\frac{360}{40}\)
n = 9
Sum of all interior angles = (n - 2) x 180
= (9 - 2) x 180
= 7 x 180
= 1260
If n(P) = 20 and n(Q) = 30 and n(PuQ) = 40, find the value n(PnQ) ...
The chord ST of a circle is equal to the radius r of the circle. Find the length of arc ST ...
Find the capacity in liters of a cylindrical well of radius 1 meter and depth 14 meters [π = 22/...
If (g(y)) = \(\frac{y - 3}{11}\) + \(\frac{11}{y^2 - 9}\). what is g(y + 3)?...
A binary operation ⊗ defined on the set of integers is such that m⊗n = m + n + mn for ...