I don't get question a
1 answer:
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Check the picture below.
you can pretty much count those lengths off the grid.
recall that A = 1/2 bh.
you can pretty much count those lengths off the grid.
recall that A = 1/2 bh.
B is the answer
just like the picture
( T' is not exact. it just shows the reflection)
just like the picture
( T' is not exact. it just shows the reflection)