Question

What is the value of j?

Answer 1

68°

Explanation:

since the angle given is a complementary angle, we know that the sum of it must equal 180°

let the unknown angle below j be x so,

`25+43+x=180\\x=180-25-43\\x=112`

now since the angle on the left of j is equal to x we can say

`x+j=180\\j=180-x\\j=180-112\\j=68`