Question in pic! help asap!! will give brainliest

When are triangles considered similar? a. corresponding angles are equal andcorresponding sides are proportionalb. corresponding angles are proportional andcorresponding sides are equalc. corresponding angles are equal orcorresponding sides are proportionald. corresponding angles are proportional orcorresponding sides are equal select the best answer from the choices providedmark this and retumsave and exitnext

Calculate the missing value. round the answer to on decimal place. start with 70, increase it by 21%, and end up with

The anwser cause i do not understand just plez