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zalisa [80]
2 years ago
8

What is the value of x in this triangle? Round only your final answer to the nearest hundredth.

Mathematics
1 answer:
olga_2 [115]2 years ago
3 0

Answer: 20.40

Step-by-step explanation:

a^2+b^2=c^2

b is unknown so it's

b=\sqrt (c^2-a^2)

b=sqr(21^2-5^2)=20.39

rounded to the nearest hundred is 20.40

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