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BC is one side of a regular n-gon the sides next to BC are extended to meet at W Find the measure of angle W in terms of n?
The question is not very coherent. However if the sides either side of BC are able to meet at a point, then the angle between BC and the adjacent sides must be less than 90 degrees. Hence the shape can only be a triangle and since it's regular the angle must be 60 degrees. So if n is 3, the angle (60) is 20n.
In triangle abc what is the length of bc?
A triangle has 3 sides and so the length of bc will depend on its perimeter.
Triangle abc is isosceles and has a perimeter of 20 cm sides ab and ac are each as long as bc calculate the length of the sides bc?
If ab and ac are each as long as bc then the triangle is, in fact, equilateral, not just isosceles. Therefore, each side is 20/3 cm = 6.66... recurring cm.
How many pairs of perpendicular sides are there in a square?
Perpendicular would be at a right angle. If your sides are abcd, then ab, bc, cd, and da are perpendicular pairs.
How many pairs of congruent sides does a square have?
Six. If the sides are labelled a, b, c and d then the congruent pairs are: ab, ac, ad, bc, bd and cd
