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How do you find an angle of a right triangle when 3 sides are given?
you need a calculator to do Sin-1 Opposite/hypotenuse OR Cos-1 Adjacent/Hypotenuse OR Tan-1 Opposite/Adjacent
How many sides does a polygon with an interior angle measure 180?
I don't know the exact amount when it starts, but I just tried it with 1 trillion sides and each angle was 180. So we know it starts between 1 billion and 1 trillion sides.
How do you decide angle of a triangle using cosine rule?
If the lengths of the three sides are a, b and c units, then the angle opposite side a, that is, angle A is given by cos-1[b2 + c2 - a2)/(2bc)]
A parallelogram with 4 right angles with different lenths and widths?
A parallelogram is a figure with different lengths and widths(also called breadth) where opposite sides and opposite angles are equal. But the angles are not 900 each. In fact, no angle in a parallelogram is a right angle as presence of 1 right angle proves all the angles to be right angles. A parallelogram with 4 right angles is called as a ''rectangle''
What shapes have opposite sides congruent?
A polygon with 2n sides (n>1) can have opposite sides congruent.
