Question

3.
A ladder 7.4 m long is placed against a wall in such a way that the foot of the ladder
is 2.4 m away from the foot of the wall. Find the height of the wall to which the ladder
reaches.​

Answer 1

Answer:

7 m

Step-by-step explanation:

simple,

let the wall be the perpendicular of a right triangle.

so the floor will be the base and the ladder will be the hypotenus.

Through, Pythagoras Theorem,

(perpendicular)^2 + (base)^2 = (hypotenus)^2

(perpendicular)^2 + (2.4 )^2 = (7.4 )^2

(perpendicular)^2 + 5.76 = 54.76

(perpendicular)^2 = 54.76 - 5.76

(perpendicular)^2 = 49

perpendicular = root 49

perpendicular = 7

Thus,

the height of the wall to which the ladder

reaches is 7 m

Answer 2

Step-by-step explanation:

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