Atrapezoid has an altitude of 12 cm. its parallel sides measure 10 and 8 cm, respectively. what is its area?

When y’all answer can y’all explain too !

How do you write something in scientific notation?

Does the construction demonstrate how to copy an angle correctly using technology a) yes the distance between points a and f was used to create circle h b) yes the distance between points f and g was used to create circle h c) no the distance between points a and f was used to create circle h d) no the distance between points f and g was used to create circle h