In the paper airplane, abcd ≅ efgh, m∠b = m∠bcd = 90, and m∠bad = 143. find m∠feh.

If a || b and e || f , what if the value of y ?

What effect would doubling all the dimensions of a triangular pyramid have on the volume of the pyramid? explain your reasoning.

Find the missing factor. write your answer inexponential form.9^2=9^4×