help with math / geometry questions?

Question

i was sick and my friend takes horrible notes and i dont ahve time after school... im not asking for answers.. jsut simply how to do these questions its not even homework.. they're guided notes. use different numbers if u want for the problems

the apothem of a regular hexagon is 3 cm find its perimeter and area

the radius of a regular triangle is 9 find the area of the triange

two regular pentagons ahve side lengths in the ratio 14:23 find the ratio of their perimeters

two regular hexagons have side lengths in the ratio 5:9 find the ratio of their areas

thx

Answer 1

I think this site will help you.