Un atleta corre por un pista circular de 100 metros de radio a una velocidad de 7 m/seg. Un amigo lo está mirando desde un punto a 200 metros del centro de la pista.
¿Qué tan rápido cambia la distancia entre el amigo y el atleta cuando la distancia entre
ellos es de 200 metros?

Vikram is studying the square pyramid below. on st to find the surface area of the pyramid, in square inches, vikram wrote (33.2) (34 ikram wrote (33.2)(34.2)+43(34.2)(284) what error did vikram make? o he used the same expression for the area of all four lateral faces. he used the wrong expression to represent the area of the base of the pyramid. o he used the wrong value as the height when he found the area of the lateral faces. he used an expression for surface area that only finds the total area of three faces.