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Answered by
8
24.
3x + 7x + 4x + 6x = 180°(all angle lies on straight line)
20x = 180°
X = 180°/20°
X = 9°
Hope this helps you
Answered by
2
Answer:
Given,
ABCD is a cyclic parallelogram.
To prove,
ABCD is a rectangle.
Proof:
∠1+∠2=180° ...Opposite angles of a cyclic parallelogram
Also, Opposite angles of a cyclic parallelogram are equal.
Thus,
∠1=∠2
⇒∠1+∠1=180°
⇒∠1=90°
One of the interior angle of the parallelogram is right angled. Thus,
ABCD is a rectangle.
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