Help? Fraction? Triangle similarity.
1 answer:
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Answer:
Step-by-step explanation:
Opposite angles of a cyclic quadrilateral are supplementary, so:
This means that
(24/30)*100 = 80%
Therefore she decreased from 100% to 80%, which is about 20% decrease.
Thus, the answer is 20%
Another way to do this is.
Which in this case is
Therefore she decreased from 100% to 80%, which is about 20% decrease.
Thus, the answer is 20%
Another way to do this is.
Which in this case is