Question

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Answer 1

Respuesta:

30

Explicación paso a paso:

Triangulo APB ( Angulo Notable de 30° y 60° )

AB = 8

->BQC

$x^{2} = 8 ^{2} + 6 ^{2}\\x^{2}=100\\x= 10$

BC= 10

->ACR

$13^{2} = x^{2} + 5 ^{2} \\169 = x^{2} + 25 \\144 = x^{2} \\12 = x$

AR = 12

Perímetro

AB + BC + AR

8 + 10 + 12

30