A kite :)
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a 3 sided shape is a right angle triangle
Hexagon
octogan
A four-sided shape with one right angle is a quadrilateral. There is no more specific term, unless it has more than one right angle or has equal sides.
A three sided shape is a triangle but the given angles are incorrect because a triangle can't possibly have a right angle and an obtuse angle because its 3 interior angles must add up to 180 degrees.
polygon
the answer is 2340 deg. in general for an "n" sided figure, the internal angle is (n-2)*180
A right angled pentagon.
An irregular quadrilateral.
Square
An irregular pentagon.
An irregular pentagon.