No. The triangle is not a right triangle. Because the Pythagorean Theorem states a2+b2=c2 when you plug in the numbers 22 for a 14 for b and 26 for c they are not the same. 22x22=484, 14x14=196, 484+196=680. The hypotenuse is c or 26 so you square it and you get 676. The 2 totals have to equal for the triangle to be a right.
Hope this helps,
kwrob