Why are some countries today much poorer than other countries? Are today's poor countries destined to always be poorer than today's rich countries? If so, explain why. If not explain how today's poor countries can catch or even pass today's rich countries.

Countries in the modern age stay poor because they do not have the privilege of having a country that cares about its people. Typically these countries have been involved in some sort of conflict with other nations or with themselves. A country like Mozambique would be considered poor because their political leaders during the age of the soviet union thought all the money would be in Communism which turned out to not be true.

Explanation:

bd = 9 cm

step-by-step explanation:

in a 30°-60°-90° triangle, the ratio of side lengths is 1 : √3 : 2. that is, the longest side (hypotenuse) is twice the length of the shortest side.

all of the triangles in your geometry are 30°-60°-90° triangles. ac is the hypotenuse of δacd, and the short side of δabc.

the short side ad of δacd will be half the length of ac, so 3 cm. the hypotenuse ab of δabc will be twice the length of ac, so 12 cm. segment bd is the difference of the lengths ab and ad, so is

bd = ab -ad

bd = 12 cm - 3 cm = 9 cm

comment on side length ratios

you can figure the ratios of side lengths in a 30°-60°-90° triangle by considering the trig ratios of the angles. or you can figure the length of the altitude of an equilateral triangle of side length 2 using the pythagorean theorem.

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