Question

11. A street 24 m wide has two buildings on
opposite sides. Due to fire break in one
building, a ladder is needed to be placed from
the top of one building to reach the top of the
opposite building. The two buildings are 20 m
and 30 m high. Find the length of the ladder?​

Answer 1

Answer:

26m

Step-by-step explanation:

Width of the street : 24m

Height of building 1 : 20m

Height of building 2 : 30m

Difference in the height : 30-20m

                                       = 10m

By using Pythagorean theorem,

P = 10m

B = 24m

H = ?

P² + B² = H²

10² + 24² = H²

100 + 576 = H²

or

H² = 100+576

H = √676

H = 26m

∴ The length of the ladder is 26m.

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