Question

ayuda plissss calcular el valor de x

Answer 1

Respuesta:

si la suma de los ángulos internos de cualquier triángulo es 180° y, como en este caso, los dos ángulos que no conocemos pertenecen a medidas de lados iguales (7 y 9) su apertura es igual, entonces

Explicación paso a paso:

$2x + 80 = 180 \\ \\ 2x = 180 - 80 \\ 2x = 100 \\ x = 100 \div 2 \\ x = 50$

Answer 2

Respuesta:

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Explicación paso a paso: