We know that Scientific notation is a way to write a very large or a very small number in the product of a decimal form of number [generally between 1 and 10] and powers of ten.
Notice that x is part of the two triangles.for the bigger triangle 92+85+x=180 177+x=180 x=3 in the smaller triangle y+100+x=180 since x=3 y+100+3=180 y=77