Question

What would the C-C-C bond angles be in a planar version of cyclohexane?

Answer 1

The `"C-C-C"` bond angles in a planar cyclohexane would be 120 °.

Explanation:

A planar cyclohexane would look like a regular hexagon.

It has six sides and six interior angles

A theorem from geometry states that, for a regular polygon,

`"Sum of interior angles" = (n-2) × 180°`, where `n` is the number of interior angles.

∴ `"Each interior angle" = (n-2)/n × 180 °= (6-2)/6 × 180 ° = 4/6 × 180 ° = 120 °`.

Each `"C-C-C"` bond angle in a planar cyclohexane would be 120 °.