SOMEONE PLS HELP MEHHH

Step-by-step explanation:

a. A= 5 * 4 = 20cm; P= 5 * 5 = 25 cm2

b. A= 4+2+5+2+9+4 = 26cm; P= 4*4 + 5*2 = 26 cm2

c. A= 7+3+4+3+7+10=34cm; P= 3*4 + 3*10 = 42 cm2

d. A= 2 * (4+10) = 28 cm; P= 4*10=40 cm2

e. A= 4+2+5+5+9+7 = 32 cm; P= 4*2 + 5*9 = 53 cm2

f. A= 2 * (7+3) = 20 cm; P= 7*3 = 21 cm2

3x + 18 = 147°

step-by-step explanation:

3x + 18 = 147°, because the value of the central angle is equal to the value of the arc formed by it.

i hope i you.