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FrozenT [24]
3 years ago
10

Can somebody help me out pleaseeee ??

Mathematics
2 answers:
frutty [35]3 years ago
8 0

answer : 54cm^2

pythagorus’ theorum : a^2 + b^2 = c^2

so 9^2 + x^2 = 15^2, x being the missing length

work out x ...

81 + x^2 = 225

x^2 = 144

x = 12

area of a triangle : 0.5 x base x height

so 0.5 x 9 x 12 = 54

nexus9112 [7]3 years ago
5 0

Answer:

67.5cm^2

Step-by-step explanation:

area of a triangle is 0.5xaxb

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