In triangle ABC point d is the midpoint of side AB, point e is the midpoint of side BC, and point f is the midpoint of side BE, if the area of triangle DCF, what is the area of triangle ABC

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?

Which equation shows the variable terms isolated on one side and the constant terms isolated on the other side for the equation -1/2x+3=4-1/4x? a. -1/4x=1 b. -3/4x=1 c. 7=1/4x d. 7=3/4x

Gabrielle's age is two times mikhail's age. the sum of their ages is 84. what is mikhail's age?