The area of a triangle with sides 11cm, 12cm, and 13cm is.
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Answer:
61.48cm²
Step-by-step explanation:
S = 11 + 12 + 13 /2 = 18
using herons formula
area = √s(s-a) (s-b) (s-c)
= √ 18 * 7 * 6 * 5
= √ 3780
= 61.48 cm²
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