a 12 ft ladder leaning against a wall at a right angle. how far does the ladder reach at a right angle?
1 answer:
C=12
B=2.5
A squared + 2.5 squared= 12 squared
A squared + 6.25squared =144
A squared = 137.75
A= +- square root 137.75
A=+- 11.74 ft
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Doubt --!!
Where is your question!??????
Since 2+8 =10 you would just have 3 left to add so it would be 10+3=13
