Answer:
120 meters (approx)
Explanation:
Think of the rectangle like two triangles;
if we find the hypotenuse of one, then we know the length of the rectangle across
Remember the Pythagorean theorem:
a^2 + b^2 = c^2
where a and b are the sides of the triangle
so then substitute in the known values:
a = 100
b = 67
now solve
100^2 + 67^2 = c^2
14489 = c^2
sqrt(14489) = c
120.37 = approx c