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Nataly_w [17]
3 years ago
7

Does anyone know this?

Mathematics
1 answer:
weeeeeb [17]3 years ago
7 0

Answer:

BC = 10.24

Step-by-step explanation:

You can use the Pythagoras theorem for this question

a^{2} + b^{2} = c^{2}

a = 8cm

b = ???

c = 13cm

We will solve for B (length BC)

a^{2} + b^{2} = c^{2}

8^{2} + b^{2} = 13^{2}

Rearrange for b

b^{2} = 13^{2} - 8^{2}

b^{2} = 105

b = \sqrt{105}

b = 10.24

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