Are these triangles congruent, if so how do you know? Need ASAP

Sadie computes the perimeter of a rectangle by adding the length, l, and width, w, and doubling this sum. eric computes the perimeter of a rectangle by doubling the length, l, doubling the width, w, and adding the doubled amounts. write an equation for sadie’s way of calculating the

Given that ot =5, xt=12, and ox= 13 is xy tangent to circle o at t? explain.

Evaluate the expression. (9 + 5)(3 + 2)0