Ihave no clue what the answer to this problem is.

1. what is the measure of ∠abc? what is the measure of ∠abd?

What value of x will make the triangles similar by the sss similarity theorem?

Sanderson is having trouble with his assignment. his shown work is as follows: − 3 7 7 3 = − 3 7 × 7 3 = − 21 21 = −1 however, his answer does not match the answer that his teacher gives him. complete the description of sanderson's mistake. find the correct answer.