What does it mean to start a business out of necessity? ?

There are two ways to look at this question.

One way is to say that a person started a business because he couldn’t find a job or he was retrenched, so he starts a business primarily with the intention of paying bills and meeting his needs. His temperament may or may not be suited for entrepreneurship. He might just get into a job as soon as he gets the opportunity to so. Such entrepreneurs are known as “necessity entrepreneurs”.  

The second way is that a person started a business because the product s/he deals is on its way to become a necessity in people’s lives. So, the entrepreneur sees an opportunity to start a business and earn profits. Such entrepreneurs are known as “opportunity entrepreneurs.”  Opportunity entrepreneurs have what it takes to stick with the ups and downs of setting up a new business and turn it into a success.

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.