Maria bought a portable mirror shaped like a trapeze. The height of the mirror is 12cm, and the bases are 4cm and 6cm
. Find the area of the portable mirror

the answer to your question a or b but i am pretty sure it is b. i hope this : )

step-by-step explanation:

in problems involving proportions, we can use cross products to test whether two ratios are equal and form a proportion. to find the cross products of a proportion, we multiply the outer terms, called the extremes, and the middle terms, called the means.

hope it