Question

Points A and B lie on a circle with a radius of 1,

arc AB has a length of pi/6
. What fraction of the circumference of the circle is the length of arc AB?

Answer 1

Answer:

Sclerenchyma tissue, when mature, is composed of dead cells that have heavily thickened walls containing lignin and a high cellulose content (60%–80%), and serves the function of providing structural support in plants. Sclerenchyma cells possess two types of cell walls: primary and secondary walls.