Abcde is a regular pentagon. the apothem is 9.7 cm, and ab = 14.1 cm. calculate the area of the pentagon. round the answer to the nearest tenth.
a. 68.4 cm
b. 136.8 cm
c. 341.9 cm
d. 683.9 cm

The correct option is C. 341.9 cm²  

Step-by-step explanation:

Length of the apothem is given to be 9.7 cm

Also, Side length of the regular pentagon is given to be 14.1 cm

Now, we need to find the area of the pentagon :

So, Area of the regular pentagon is given by the formula :

Therefore, The required area of the regular pentagon = 341.9 cm²

Hence, The correct option is C. 341.9 cm²

c.

step-by-step explanation:

because first you have to add the 4x, 9x, and the 7x together and you get 20x and then you add the last numbers up and you get 5and then you put the subtraction sign in there and that's how you get the answer.