Solve the problem given to you by Hatena!(はてなさんからの問題を解け！)

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As shown in the diagram above, there is a trapezoid with a parallel ◯, △, and a ◻︎,☆. If the area of ​​this trapezoid is 117 cm2, what is the length (〇) of the △and ☆?

*Question from the 6th grade mock exam A.

これは英語版です。日本語版はこちらhttps://tohyotalk.com/question/763346