Question

she only had one square cut in half at the diagonal creating 2 equal triangles left. each triangle has an area of 0.18 units. what is the length of the side of the square?

Answer 1

a square cut in half at the diagonal makes two right triangles with equal base and height. let's call that length x.

the area of each triangle is (1/2)bh or in our case (1/2)x*x or (1/2)x^2

each triangle has area 0.18 so (1/2)x^2 = 0.18

solve for x