El radio de una circunferencia mide 12 cm. ¿Es posible que una cuerda mida 15 cm? ¿Cuál es la medida máxima que puede tener una cuerda en esta circunferencia? Por favor ayúdenme

Thales was an ancient philosopher familiar with similar triangles. one story about him says that he found the height of a pyramid by measuring its shadow and his own shadow at the same time. if the person is 5-ft tall, what is the height of the pyramid in the drawing?

Arational number that is equivalent to -20/4?

25 ! what is the value of x? enter your answer in the box. x =