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denis23 [38]
3 years ago
15

from the height of a wall if a ladder 10 metre long place along the wall and its foot is 2 metre away from the wall.​

Mathematics
1 answer:
Ira Lisetskai [31]3 years ago
7 0

Answer:

height of the wall = 9.79 m

Step-by-step explanation:

This form a right angled triangle.

Hypotenuse = length of the ladder = 10 m

Base = length from foot of ladder to wall.

Altitude = height of the wall

Pythagorean's theorem,

base² + altitude² = hypotenuse²

  2² +  altitude² = 10²

4 +  altitude² = 100

      altitude² = 100 - 4

      altitude² = 96

      altitude = √96 = 9.79 m

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