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Given the triangle below, find the missing side length.

The second picture is the length of side b and side c.

Given the triangle below, find the missing side length. The second picture is the-example-1
Given the triangle below, find the missing side length. The second picture is the-example-1
Given the triangle below, find the missing side length. The second picture is the-example-2

1 Answer

1 vote

Answer:

a = 7

Explanation:

Using Pythagoras' identity in the right triangle,

The square on the hypotenuse is equal to the sum of the squares on the other 2 sides, that is

a² + b² = c² , substitute values

a² + 2.4² = 7.4², that is

a² + 5.76 = 54.76 ( subtract 5.76 from both sides )

a² = 49 ( take the square root of both sides )

a =
√(49) = 7

User TKumar
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