A 17m long ladder leans on a wall such that its lower end rests 8m always from the base of the wall. Then, the upper end of the ladder reaches the height of ______m on the wall. ( 12, 9, 15)
Answers
Answered by
4
Answer:
15
Step-by-step explanation:
Let the height be x
17²=x²+8²
289=x²+64
x²=289-64
x²=225
x=15
Answered by
1
Answer:
x=15
Step-by-step explanation:
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