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3024.3. Trapeze, elements, trapeze types, trapeze properties, isosceles trapeze signs.

Write the correct answer!

Calculate the middle line lenght of a trapeze, if the area is 21cm^2 and the height is 3cm!
cm
Grade:
8
Subject
Geometry
Theme
Trapeze. Triangle and trapeze midline.
Subtheme
Trapeze, elements, trapeze types, trapeze properties, isosceles trapeze signs.

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