michaelgodwin712
michaelgodwin712 michaelgodwin712
  • 16-02-2022
  • Mathematics
contestada

Find the length of side x to the nearest tenth?

Find the length of side x to the nearest tenth class=

Respuesta :

jimrgrant1 jimrgrant1
  • 16-02-2022

Answer:

x ≈ 12.7

Step-by-step explanation:

Since the base angles are congruent , both 45° then the triangle is isosceles with 2 congruent legs, both 9

Using Pythagoras' identity in the right triangle.

x² = 9² + 9² = 81 + 81 = 162 ( take square root of both sides )

x = [tex]\sqrt{162}[/tex] ≈ 12.7 ( to the nearest tenth )

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