0.8 = 1.6. this is because the model is shaded as 1.6 but 0.8 has been shown by underlining it underneath the model.
Answer: 14.353 or 18.647
Step-by-step explanation:
Hi.
Subtracting:
16.5 - 2.147 = 14.353
Adding:
16.5 + 2.147 = 18.647
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I only could find part of the triangle sorry, but u1 is 2 radical 2
