Mathematics · Mensuration
एक आयत ACDF में, भुजा AC = 90 सेमी और AF = CD = 20 सेमी है। भुजा CD पर एक बिंदु E इस प्रकार स्थित है कि ED = 10 सेमी है। यदि आयत में से एक त्रिभुज AFE को हटा दिया जाता है, तो शेष छायांकित भाग ADEF का क्षेत्रफल ज्ञात कीजिए।
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