3
A shape does not have a sum. You can sum its angles, the lengths of its sides, the areas of its faces and so on. But the shape does not have a sum, in itself.
Two.
Simple, by finding how many traingles there are in the shape through this formula 180(n-2). N stand for how many interior angles. Knowing how many triangles you can multiply it by 180 giving you the total degrees in the shape. Keep in mind this is only for a REGULAR hepatagon. Knowing the sum of the angles u can divide it by the total amount of angles and get the measure for each interior angle. This sounds confusing but it really isn't.
A cone has no acute angles because a cone is a 3D shape and not a 2D.
4 angles
52 angles.
A pentagon has five internal angles.
3
A heptagon (7-sided shape) has: 7 angles.
The easiest way to find out how many degrees in any shape is 180*(n-2) where n equals the number of angles in the shape. Thus, triangles have 180 degrees.
It depends how many sides the shape has. If n is the number of sides of the shape, then the interior angles sum to (n - 2) x 180o. The exterior angles of any shape sum to 360o.
A shape does not have a sum. You can sum its angles, the lengths of its sides, the areas of its faces and so on. But the shape does not have a sum, in itself.
Two.
A 6 sided shape (hexagon) would have 6 interior angles of 120 degrees (assuming it is regular)
A trapezium has 4 right angles...Correction: it has 4 angles but they are not right angles. A structure/shape with 4 right angles is a rectangle or square.
Two or three.