rectangular triangle造句

Source ( if applicable ) : I noticed the term " rectangular triangle " at http : / / projecteuler . net / problem = 176 and a Google search for " rectangular triangle " yields the Wikipedia page for " right triangle ."
Source ( if applicable ) : I noticed the term " rectangular triangle " at http : / / projecteuler . net / problem = 176 and a Google search for " rectangular triangle " yields the Wikipedia page for " right triangle ."
SWMM 5 has many types of open and closed pipes and channels : dummy, circular, filled circular, rectangular closed, rectangular open, trapezoidal, triangular, parabolic, power function, rectangular triangle, rectangle round, modified baskethandle, horizontal ellipse, vertical ellipse, arch, eggshaped, horseshoe, gothic, catenary, semielliptical, baskethandle, semicircular, irregular, custom and force main.
It's difficult to find rectangular triangle in a sentence. 用rectangular triangle造句挺难的