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If a regular polygon has 6 sides how many degrees are there in any one of its angles?
Since a regular polygon is a series of straight lines of equal length that eventually join up with the start of the first line, this means that the sum of the angles between each line must sum to 360 degrees. If there are 6 sides in the polygon then the angle between each line is 360 degrees divided by 6 sides = 60 degrees.This kind of regular polygon with 6 sides of equal length has a special name, it is called a hexagon.
How many degrees are there total in the interior angles of a polygon?
Join all the corners to a point inside. For N sides that gives N triangles. Total angles = 180xN. Subtract off the angles at the chosen point (360 deg) to leave the angles at the corners totalling 180x(N-2).
An isosceles triangle is equilateral?
No, isosceles and equilateral are two separate types of triangles. Isosceles triangles have only two congruent sides, while all three sides of an equilateral triangle are congruent.
How do you divide a circle with 9cm diameter in three equal parts?
Construct a circle with a 4.5 radius. The circle's circumference is 360 degrees. So mark out 3 by 120 degrees on the circumference and join them to the centre of the circle which will divide the circle into three equal parts.
What are at least facts and features of a parallelogram?
1) opposite sides are parallel to each other and will never intersect 2) opposite sides are equal in length 3) opposite angles are equal 4) any two adjacent angles add up to 180 degrees 5) can tessellate 6) has 2 lines of symmetry 7) may be a square, rectangle, rhombus or rhomboid 8) if you join the corners using lines ('x' in the centre), the 4 triangles formed will be equal and congruent to one another 9) any line that passes through the midpoint bisects the parallelogram 10) The diagonals (ie. the lines that join the corners) bisect each other
