Question

Pair of angles $1^{\circ }$, ${179}^{\circ }$ areand pair of angles $1^{\circ }$, ${89}^{\circ }$ are .

• A. Complementary
• B. Supplementary
• C. Obtuse
• D. Vertically Opposite

Answer 1

Answer: (A), (B)

The correct options are
A Complementary
B Supplementary

Pair of angles $\angle$A and $\angle$B are supplementary if,
$\angle$A +$\angle$B = ${180}^{\circ }$.
Pair of angles $\angle$A and $\angle$B are complementary if,
$\angle$A +$\angle$B = ${90}^{\circ }$.
$\therefore$ Pair ($1^{\circ }$, ${179}^{\circ }$) form a supplementary angle and ($1^{\circ }$, ${89}^{\circ }$) form a complementary angle.