ABCD Deltoid.
Calculate the size of .
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ABCD Deltoid.
Calculate the size of .
The side angles in a kite are equal, therefore:
Also, therefore:
Now we can calculate angle A. Since the sum of angles in a triangle is 180, this is done as follows:
Now we can calculate angle D. As we know, the sum of angles in a kite is 360, so:
100
Indicates which angle is greater
A kite has two pairs of adjacent equal sides and two pairs of adjacent equal angles. Unlike a rhombus, opposite angles are not necessarily equal!
In a kite, adjacent angles at the ends of the cross diagonal are equal. Since B and C are at opposite ends of the symmetry axis, they must be equal:
The diagram shows 30° and 40° which are parts of the angles at B. So , and by kite properties too.
Yes! The diagonal creates triangles. In triangle with the 30° angles:
Double-check that you correctly identified which angles are equal in the kite. Remember: adjacent angles are equal, not opposite ones like in a parallelogram!
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