In the paper airplane, ABCD ≅ EFGH, m∠B= m∠BCD=90, and m∠BAD= 134. find m∠GHE

How many countries have portuguese as a national language?

What evidence does the writer give to support his argument about coral reefs? a) he speaks of the activities of coral polyps. b) he describes the composition of the great barrier reef. c) he emphasizes the ways in which coral reefs are fragile. d) he points out the ways that scientists do research on the reefs.

Is an official language in every north african country