Verbs with infinitives ending in -er form a second group of regular verbs in Spanish, often called second conjugation verbs.
Step-by-step explanation:
To conjugate these verbs in the present tense, drop the -er from the infinitive and add the second conjugation present tense endings: -o, -es, -e, -emos, -en.
The answers are <span>I. Two pairs of opposite angles congruent. II. A pair of adjacent angles are supplementary. </span> <span>VIII. The diagonals bisect each other. </span>
