2 years ago

Help pls 8 ft 5 ft h 9 ft

Mathematics

1 answer:

Zielflug [23.3K]2 years ago

6 0

Answer:

Step-by-step explanation:

a = 5 ft, b = 8 ft, c = 9 ft

semiperimeter s = (a+b+c)/2

= (5 + 8 + 9)/2

= 11 ft

area = √(s(s-a)(s-b)(s-c))

= √[11(11-5)(11-8)(11-9)]

= √396 ft²

area = ½(9)h = √396

4.5h = √396

h = √396/4.5 ≅ 4.42 ft

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