A kite.
No. The diagonals of rhombus are not equal.
Sides have lenght, angles do not. Cosine is the ratio of the adjacent side to the hypotenuse. Cosine can be used to find either of these sides if the other is known.
A rhombus.
A rectangle
In a equilateral (all sides are the same lenght) hexagon: 360 degrees, divided by 6 angles, 360/6=60, 60 degrees.
No. The diagonals of rhombus are not equal.
They are:2 × arctan(5/10) ≈ 53.1°2 × arctan(10/5) = 180° - 2 × arctan(5/10) ≈ 180° - 53.1° = 126.9°
Trapezoid and parallelogram/
Sides have lenght, angles do not. Cosine is the ratio of the adjacent side to the hypotenuse. Cosine can be used to find either of these sides if the other is known.
A rhombus.
A rectangle
An equilateral triangle.
iscosoles triangles have two angles that are equal with two of the same lenght sides and scalene triangle have no sides or angles that are the same
An ireggular square has sides all the same lenght but all the angles are not congruent
the angles stay the same but the lenght of the sides change.
100 cm = 2* sides^2 so side length = square root of 50 cm
They are called regular polygons