Find the side of a square whose diagonal is of the given measure.

given = 15√2cm

answer

d. 10

explanation

the distance from point y to wx is the height of the triangle.

using pythagoras theorem,

group similar terms to get,

this implies that,

take positive square root of both sides to get,

this implies that,

add 8+12 to get a simplified answer of 12r-20