decagon
nonagon
octagon
hexagon
Correct answer is C
Sum of all exterior angles is 360o
360o (30o - 40o)
360 - (130o)
230o
remaining is 46o = 23046 = 5
5 + 3 = 8 sides; Octagon
4
√3+4
4 √2
4√3+4
Correct answer is A
√2(√6+2√2)−2√3
√12 + 2 x 2 - 2√3
2 √3 - 2 √3 + 4
= 4
In what number base was the addition 1 + nn = 100, where n > 0, done?
n - 1
n + 1
n
n + 2
Correct answer is C
No explanation has been provided for this answer.
Given that cos 30o = sin 60o = 32 and sin 30o = cos 60o = 12, evaluate tan60o−q1−tan30o
√3−2
2 - √3
√3
-2
Correct answer is C
Tan 60 = 3; Tan 30 = 1
tan60o−11−tan30o = √3−11−1√3 = √3−13−1√3
= √3−11×√3−1√3
= √3−11×√3√3
= √3