No, the angles in an octagon are not necessarily obtuse. An octagon can have a mix of acute, obtuse, and right angles depending on its shape and dimensions.
There is no three-sided shape with two obtuse angles, because the three interior angles of a three-sided shape, which is a triangle, add up to 180 degrees, and two obtuse angles would be over 180 degrees.
A regular polygon of n sides (where n > 4) has n obtuse angles. Since there is no limit to the number of sides that a polygon can have, there can be no limit to the number of obtuse angles in a shape.
rhombus
a parallelogram
No, not if it is a randomly-drawn 8-vertex shape. Octagons only have all- obtuse angles if it is a regular octagon, like the shape of a stop sign.
No, the angles in an octagon are not necessarily obtuse. An octagon can have a mix of acute, obtuse, and right angles depending on its shape and dimensions.
2 obtuse and 2 acute in the classic kite shape.
It depends on they type of arrowhead you have. If it is a arrowhead in the shape of a directional arrow, there are no obtuse angles. The most possible obtuse angles is 1.
There is no three-sided shape with two obtuse angles, because the three interior angles of a three-sided shape, which is a triangle, add up to 180 degrees, and two obtuse angles would be over 180 degrees.
a pentagon
A regular polygon of n sides (where n > 4) has n obtuse angles. Since there is no limit to the number of sides that a polygon can have, there can be no limit to the number of obtuse angles in a shape.
A square
Regular octagon has 8 angles of 135o.
parallelogram
pentagon
no....