Which best explains how the institutional revolutionary party (pri) maintained power in mexico for many years? it defeated opposition parties by controlling congress and using election fraud. it ruled so well that people prospered and opposing parties did not succeed. it acted like a dictatorship and jailed those who opposed the way they ruled. it offered the working class many benefits and kept dissension to a minimum.

It defeated opposition parties by controlling congress and using election fraud is the correct answer.

The PRI (Institutional Revolutionary Party) was founded in 1929 ans since then it held uninterrupted power in Mexico till 2000. The main reason for this was, it controlled Congress, the freedom of press was curbed and was used for its election propaganda and elections were often rigged in favor of the party.

your answer is 228

step-by-step explanation:

add the top and bottom bases together, then divide them by 2, then multiply by the height.