Question error

[Darkgrumly]

Hi,

Reporting an error in one of the questions.

Reference exercise: matrix_dimensions.

If BC is parallel to AE and have the same length (The correct answer to the question) then AB is parallel and has the same length as CE. So CE has a length of 5. The triangle CDE can't exist because of the Pythagorean theorem. If the angle of D is 90 degrees (as shown) then CD²+DE²=CE². In this case it's 2²+4²=5². To solve this issue, correct the length of CD to 3.

Sincerely,
Eddy

[mauk81]

realbug
Classifying shapes by line and angle types