In a sale, normal prices are reduced by 10%
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Answer:
23
Step-by-step explanation:
Because the angles of a triangle always add up to 180°, you can set up an equation like this.
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.