One could not. The shape could be a rectangle.
There are 5 ways to prove a Quadrilateral is a Parallelogram. -Prove both pairs of opposite sides congruent -Prove both pairs of opposite sides parallel -Prove one pair of opposite sides both congruent and parallel -Prove both pairs of opposite angles are congruent -Prove that the diagonals bisect each other
The answer depends on which properties are being used to prove which rules.
congruent
the shape of an acute is V shape.
One could not. The shape could be a rectangle.
You can prove by making two or more identical triangles.Congruence means when two figures have the same size, form, and shape.
Check to see that -- it has four sides -- its two diagonals are equal.
All you need is two drops that are not the same shape to prove they are not the same. Compare drops of water dripping from a tap (faucet) which is elongated, and one in zero gravity, is spherical.
It is important to prove that a geometric shape is the correct locus for a given set of conditions.
There is no such shape. If anyone can prove otherwise, I'd be grateful if they'd let me know.
A rhombus has two sets of parrallell sides. If it has two set of parrellell sides, it is a rhombus.
You can't. A trapezoid is a quadrilateral because it has four sides. The definition of a quadrilateral is a shape with four sides.
You have to prove that each side of one shape is congruent to the corresponding side of the second shape and that each angle of the first are congruent to the corresponding angles of the second. Sometimes this task is made simpler by the geometry of the shape in question. For example, with any regular polygons with the same number of sides, you only need to show that any side of one is congruent to any side of the other. The regularity takes care of the rest.
You would first prove that 3 of the sides are the same size (The 4th is automatically the same size as the other three). Then, you would prove that there are three right angles in the shape, using the slopes (If lines make a right angle, they are perpendicular and their slopes are negative reciprocals of each other.).
You could prove two triangles are congruent by measuring each side of both triangles, and all three angles of each triangle. If the lengths of the sides are the same, and so are the angles, then the triangles are congruent... if not, then the triangles are not congruent. If the triangles have the exact same size and shape then they are congruent.
The fact that the Pole Star appears higher in the sky as you move towards the North Pole and lower as you move towards the equator indicates that the Earth is curved. The only shape that fits this observation is a sphere.