Answer: It provides a total brain workout.” Research has shown that listening to music can reduce anxiety, blood pressure, and pain as well as improve sleep quality, mood, mental alertness, and memory.
In ∆ABD
In ∆BCD
Now
IN PARALLELOGRAM ABCD
Option A
Answer:
the ration of 3:5. 5 x 4 gives you 20 so, 3x4 gives you 12.
B I think or C or D or it could be A