A ladder placed 17m long reaches a window which is 8 m above the ground, on one side of the street. Keeping its foot at the same point, the ladder is turned to the side of the street to reach a window at height of 15 m. Find the width of the stree
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Answers
Answered by
0
Answer:
A correct
Correct option is
A
21m
In △ADC,
AD
2
+AC
2
=CD
2
9
2
+AC
2
=15
2
AC
2
=225−81
AC=12 m
In △BEC,
EC
2
=BC
2
+BE
2
15
2
=12
2
+BC
2
225−144=BC
2
BC=9 m
Width of the road = AC+BC = 12+9 = 21 m
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Answered by
1
Answer:
answer is 3+ 4+5-4+7+6+5+0+4-7+7
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