1:2:3:4= 4:8:12:16
Explanation:
Add 1,2,3,4 then divide by 40 which gives you 4.
Then put those in the ratios given :)
It can be called an acute triangle, an isosceles triangle, or equiangular triangle (equilateral triangle)
The band has sold 1,890,000 copies or 1.89 x 10^6
