Question

what is the fourth step of the construction? a open the compass to length ab. put the compass point on c. draw an arc and label its point of intersection with the construction in the first step as r. b with the same compass setting as the previous step, put the compass point on r and draw another arc that intersects the arc constructed in the previous step. label the intersection t. c with the same compass setting as the previous step, put the compass point on a and draw another arc that intersects the arc constructed in the previous step. label the intersection t. d open the compass to length ab. put the compass point on a and draw another arc that intersects the arc constructed in the previous step. label the intersection t.

Explanation:

Se asume que se está hablando de una construcción geométrica con compás y lápiz. En una construcción geométrica, después de abrir el compás a la longitud AB y marcar un punto R en un primer paso, el siguiente paso común es mantener la misma configuración del compás y poner el punto del compás en R para trazar un arco que intersecte con otro arco construido previamente.

Answer:

B. With the same compass setting as the previous step, put the compass point on R and draw another arc that intersects the arc constructed in the previous step. Label the intersection T.