3. An umbrella is made by stitching 12 triangular pieces of cloth of two different colours, each piece measuring 13 cm, 13 cm and 24 cm. How much cloth of each colour is required for the umbrella? (2.5)
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Answer:
56
Step-by-step explanation:
56;!1??2(2(+1;;1!(11(+2!!2!1
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