i dont know how i dont know this lol, please also provide the formulas if possible

Answer:
a.) 26
b.) 30
Step-by-step explanation:to find the perimeter, add up all of the sides. and to find the area, cut your polygon into two quadrilaterals and multiply length by width for both of them and then add them together.
for example, 2*7=14 and 4*4=16 so 14+16=30 and perimeter is self-explanatory. goodluck!