A square has four right angles and four equal sides.<span> It belongs to the set of polygons known as quadrilaterals, which are shapes with four sides.</span>
Answer:
30
Step-by-step explanation:
8 plus 12 is 20
20 divided my 4 is 5
5 plus 5 is 10
6 minus 3 is 3
10(from the first half) times 3(from the second half) is 30
Okay. So 90 yds was cut from the 230 yd yarn. 230 - 90 = 140. 1/2 of 140 is 70. 230 - 70 = 160. The yellow yarn was 160 yds longer than the blue yarn at first.
Scale factor = 0.5 ( as its half of the original) and this represents reduction