Answer:
-π/10 radians
Step-by-step explanation:
To convert degrees to radians, the following conversion is used:
180° = πrad
To convert -18° to radians
Let -18° = x rad
Cross multiplying both equalities to find the unknown variable x we have;
180° × x = -18° × π
x = -18π/180°
x = -π/10radians
The conversion of -18° to radians is -π/10radians
