7) The sides of a triangle are 8 cm, 11 cm, and 13 cm. What is the area?
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Answer:
Step-by-step explanation:
√s(s-a)(s-b)(s-c)
S=32/2=8+11+13
√16(16-8)(16-11)(16-13)
√16×8×5×3
√2×2×2×2×2×2×2×5×3
2×2×2√2×5×3
8√30
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Answer:
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