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Khan Academy (English - US curriculum)
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Khan Academy (English - US curriculum)
Math by grade
Illustrative Mathematics
6th grade (Illustrative Mathematics)
Unit 1: Area and surface area
Lesson 6: Area of parallelograms
Lesson 6: Area of parallelograms
Area of a parallelogram
Area of parallelograms
Finding height of a parallelogram
Find missing length when given area of a parallelogram