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一块布长15米,宽1.2米,用这块布剪两条直角边分别为4分米和3分米的直角三角形小旗。请问最多能剪出多少面小旗?
A piece of cloth is 15 meters long and 1.2 meters wide. Use this piece of cloth to cut two right-angled triangle flags of 4 square meters and 3 meters respectively. How many face can cut the flag?