Question 1028641
The area of a triangle is given by
{{{A = (1/2)bh}}}
so each triangle has an area of
A = (1/2)(14)(7) = 49 sq cm
84 of them would need an area of 84 x 49 = 4116 sq cm.
But there are 100^2 = 10000 sq cm in a square meter...
Thus you would need 0.4116 square meters colored paper.