60
80
100
360
Correct answer is B
Sum of interior angles in a quadrilateral is 360
(x + 20)o + (x+ 10)o + (2x - 45)o + (x - 25)o = 360o
5xo - 40o = 360o
x = 400/5 = 80o
The slope of the tangent to the curve y = 3x\(^2\) - 2x + 5 at the point (1, 6) is ...
A regular hexagon is constructed inside a circle of diameter 12cm. The area of the hexagon is ...
If a = \(\frac{2x}{1 - x}\) and b = \(\frac{1 + x}{1 - x}\), then a2 - b2 in the simplest form is...
The sum of the first n terms of the arithmetic progression 5, 11, 17, 23, 29, 35, ... is? ...
If R = [2, 4, 6, 7] and S = [1, 2, 4, 8], then R∪S equal ...