Question

Comment on the type of the angle $\angle a.$

• A. Acute angle.
• B. Obtuse angle.
• C. Cannot be determined.

Answer 1

The correct option is A Acute angle.

The given angle is between ${180}^o$ and ${270}^o.$

The angle subtended between ${180}^o$ and ${270}^o$
$={270}^o-{180}^o={90}^o$

Hence, the measure of the given angle must be less than ${90}^o.$

$\therefore$ It is an acute angle.