​​triangle 5420

Two pairs of parallel lines, AB to CD and AC to BD, are given. Point E lies on the line BD, point F is the midpoint of the segment BD, point G is the midpoint of the segment CD, and the area of ​​the triangle ACE is 20 cm2.

Determine the area of ​​triangle DFG.

Correct answer:

S =  5 cm2

Step-by-step explanation:

S1=20 cm2 S1 = q d/2 q=10 cm d=2 S1/q=2 20/10=4 cm g=q/2=10/2=5 cm f=d/2=4/2=2 cm S=g f/2=5 2/2=5 cm2 S = S1/4

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