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Math question please help!!

Math question please help!!
asked 14.6k views
0 votes
Math question please help!!

Math question please help!!-example-1
asked
User Str
by
7.5k points

2 Answers

6 votes
16.8 I’m 100% sure good luck
answered
User Abdul Alim Shakir
by
8.3k points
6 votes

Answer:

16.8

Explanation:

using pythagoreous theory

21²-12.6²=x²

282.4=x²

√x² = √282.24

x=16.8

answered
User Nazaret
by
8.8k points
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