carterh166
carterh166 carterh166
  • 01-03-2019
  • Mathematics
contestada

Whats the area of this triangle ​

Whats the area of this triangle class=

Respuesta :

hiho1421
hiho1421 hiho1421
  • 01-03-2019
(8÷2)^2+x^2=8^2
16+x^2=64
x^2=48
x=√48

(8×√48)÷2=27.71...

Answer:27.7in^2
Answer Link
gmany
gmany gmany
  • 01-03-2019

Answer:

[tex]\large\boxed{A=16\sqrt3\ in^2\approx27.7\ in^2}[/tex]

Step-by-step explanation:

It's the equilateral triangle.

The formula of an equilateral triangle wit sides a

[tex]A=\dfrac{a^2\sqrt3}{4}[/tex]

We have a = 8in. Substitute:

[tex]A=\dfrac{8^2\sqrt3}{4}=\dfrac{64\sqrt3}{4}=16\sqrt3\ in^2[/tex]

Answer Link

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