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Sum of fifth, sixth and seventh numbers = 21.6 X 10 - 17.5 X 4 - 24 X 3= 216 - 70 - 72 = 74Let the seventh number be 'p'.Sixth number = p - 8Fifth number = p - 8 - 6 = p - 14So, p + p - 8 + p - 14 = 74Or, 3p - 22 = 74Or, 3p = 96Or, 'p' = 32Required average = (p - 8 + p - 14) ÷ 2 = p - 11 = 32 - 11 = 21
Find the number of sides of regular polygon. If the ratio of interior angles and exterior angles are 3:2.
A regular polygon with 'x' sides has 54 diagonals, while another regular polygon with 'y' sides has 90 diagonals. Determine the sum of 'x' and 'y'.
The external angle of a regular polygon is 82°. Find the internal angle.
Difference between the interior and exterior angles of regular polygon is 60°. How many sides are there in the polygon?
If each interior angle of a regular polygon is 135°, then the number of sides that polygon has is:
A polygon has 44 diagonals. How many sides does this polygon have?
When each internal angle of a regular polygon measures as 144°. Determine the number of sides in the polygon.
The ratio between the number of sides of two regular polygons is 1 : 2 and the ratio between their interior angle is 2 : 3, the number of sides of these...
Each interior angle of a regular polygon is 45° more than its exterior angle, then find its number of sides.
