Question

A mason used a ladder to build a wall.He placed the foot of the ladder 12 m away from the wall.The ladder touched the wall at the height of 9m.What was the length of the ladder??

Answer 1

Answer:

15 m

Step-by-step explanation:

as we get a right angle after drawing a diagram with given information

use pythagorean theorem

i.e hypotenuse. c = √ a² + b²

c = length of ladder , a and b are 12 and 9

length of the ladder = √ 12² + 9²

= √144 + 81

= √225

= 15 m

therefore , height of the ladder = 15 m

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Answer 2

Answer:

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