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Mandarinka [93]
3 years ago
7

6 ft. 12 ft. 8 ft. The area of this irregular figure is -sq. ft. 16 ft.

Mathematics
1 answer:
nikdorinn [45]3 years ago
3 0

Answer:

When we know all 3 sides, we use Heron's Formula

area = sqrt [s *(s-a) * (s-b) * (s-c)]

where "s" is the semi-perimeter which in this case equals

s = (6 + 8 + 12) / 2   = 13

area = sqrt [13 * 5 * 7 * 1]

area = sqrt 455

area = 21.3307290077

area = 21.33 square feet (rounded)

Step-by-step explanation:

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