Question

20 give the measure of the angle that is supplementary to the given angle.
$140^\circ$
$105^\circ$
$59^\circ$

Explanation:

Step1: Recall supplementary angle rule

Supplementary angles sum to $180^\circ$, so supplementary angle = $180^\circ - \text{given angle}$.

Step2: Calculate for $140^\circ$

$180^\circ - 140^\circ = 40^\circ$

Step3: Calculate for $105^\circ$

$180^\circ - 105^\circ = 75^\circ$

Step4: Calculate for $59^\circ$

$180^\circ - 59^\circ = 121^\circ$

Answer:

$40^\circ$
$75^\circ$
$121^\circ$