The sum of the interior angles of a polygon is 20 right a...
The sum of the interior angles of a polygon is 20 right angles. How many sides does the polygon have?
12
20
40
10
Correct answer is A
The formula for the sum of the interior angles of a regular polygon = (2n - 4) x 90°
Given: Sum = 20 right angles
(2n - 4) x 90° = 20 \times 90°
⇒ 2n - 4 = 20
2n = 24; n = 12.
\(\begin{array}{c|c} Scores & 0 - 4 & 5 - 9 & 10 - 14\\ \hline Frequency & 2 &...
The binary operation on the set of real numbers is defined by m*n = mn2 for all m, n \(...
No. of Days 1 2 3 4 5 6 No. of students 20 2x 60 40 x 50 The distribution above shows the n...
At what rate per cent per annum will N520.00 yield a simple interest of N39.00 in three years? ...
Given that (x + 2)(x2 - 3x + 2) + 2(x + 2)(x - 1) = (x + 2) M, find M...
A chord is 5cm from the centre of a circle of diameter 26cm. Find the length of the chord ...