Rationalise the denominator of 1/2√3
Detailed answer is in the image attached.
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120.9 or <em>121</em> (if you round)
It would be 9, 9 1/2, 10, and 10 1/2. I think.
Mm I think it’s the 3rd chart
1. ask yourself whats half of 22
2. divide that half by the blue
3. if that doesn't help ask your teacher