# 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 cm

Determine the area of triangle DFG.

^{2}.Determine the area of triangle DFG.

### Correct answer:

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#### You need to know the following knowledge to solve this word math problem:

**geometry**- line
- line segment
**algebra**- expression of a variable from the formula
**planimetrics**- right triangle
- area of a shape
- triangle

#### Units of physical quantities:

#### Themes, topics:

#### Grade of the word problem:

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