There is a 12% sale on glue sticks. The original price was $3.00 What is the new cost?
1 answer:
You might be interested in
check the picture below.
so, when we have a line from a 90° angle running perpendicular to the opposite side, like in this case, we end up with three similar triangles, a large one containing the other two, a medium and a small one.
now, using the sides proportions as you see there, of the small and large one, we get that much.
