Question

a ladder 20 metres leaning to the wall at a height of 10 M then the angle made by its horizontally is​

Answer 1

I have solved it...

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Answer 2

Answer:

Step-by-step explanation: If you follow Pythagoras theorem then you will get the answer

20^2 =10^2 + x^2

200 = 100 + x^2

x^2 =200 - 100

x = root over 100

= 10