4. To‘g‘ri to‘rtburchakning tomonlari \(\frac{8}{5}\) m va \(\frac{3}{4}\) m bo‘lsa, uning yuzini toping. Javobni aralash son ko‘rinishida ifodalang.

To‘g‘ri to‘rtburchak yuzini tomonlarini ko‘paytirib topamiz:

\(S=\frac{8}{5}\times\frac{3}{4}=\frac{24}{20}=\frac{6}{5}=1\frac{1}{5}\).

Javob: \(1\frac{1}{5}\text{ m}^2\).