Question

a lader has placed against the wall as shown in the figure. find the square of its length​

Answer 1

Answer:

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Step-by-step explanation:

Let AC be the ladder and BC be the wall . Then,

In right △ ABC,

AC ² = AB² +BC²

AC²=(4) ² +(5)²

AC²= 16 + 25

AC² = 41

AC= √41

Hence, the length of ladder is √41 m. or 6.40312423743 m

Answer 2

Step-by-step explanation:

• In right triangle ABC
• AC²= AB²+BC²
• AC²=(4)²+(5)²
• AC²=16+25
• AC²=41
• AC²=√41