Choose all of the equivalent expressions of (a + b)(x + y). (a + b)x + (a + bly
a(x + y) + (x + y)
(b + a)(y + x)
ax + by
ax + bx + ay + by
ay + bx

In the diagram, the ratios of two pairs of corresponding sides are equal to prove that almn - axyz by the sas similarity theorem, it also needs to be shown that x 6 z un z zz un = 2x zləzz lezy