Calculate AE in Triangle: Parallel Lines with Segments 6 and 10

Question

BC is parallel to DE.

Calculate AE.

151515101010222444666AAABBBCCCDDDEEE

Video Solution

Solution Steps

00:00 Find AE
00:03 Parallel lines according to the given data
00:07 Corresponding angles between parallel lines are equal (given)
00:10 The triangles share the same vertex angle (given)
00:14 Similar triangles by AA (angle-angle)
00:24 Find the similarity ratio
00:32 Substitute appropriate values and solve for AE
00:40 The whole side equals the sum of its parts
00:48 The similarity ratio is not equal, the drawing is illogical
00:52 And this is the solution to the question

Step-by-Step Solution

Let's prove that triangles ADE and ABC are similar using:

Since DE is parallel to BC, angles ADE and ABC are equal (according to the law - between parallel lines, corresponding angles are equal)

Angle DAE and angle BAC are equal since it's the same angle

After we proved that the triangles are similar, let's write the given data from the drawing according to the following similarity ratio:

ADAB=DEBC=AEAC \frac{AD}{AB}=\frac{DE}{BC}=\frac{AE}{AC}

We know that - AB=AD+DB=6+4=10 AB=AD+DB=6+4=10

610=10154=AEAC \frac{6}{10}=\frac{10}{154}=\frac{AE}{AC}

Let's reduce the fractions:

35=23 \frac{3}{5}=\frac{2}{3}

This statement is incorrect, meaning the data in the drawing contradicts the fact that the triangles are similar. Therefore, the drawing is impossible.

Answer

Impossible as the shape in the figure cannot exist.