Respuesta :

Step-by-step explanation

tan∞20° = BC÷ BA = 3 ÷ BA

tan∞20°°= 3÷ BA

÷ by BA

⇒Tan∞20°BA= 3

÷ BY tan∞20°

tan∞20°BA÷tan20°BA= 3÷tan∞20°BA

BA= 3÷TAN∞20°BA

BA= 8.24