NEED HELP ASAP WILL MARK BRAINLIEST

Find the perimeter and area of a regular pentagon with a radius of 8 cm.

Perimeter =

Area =

7! = 7×6×5×4×3×2

3! = 3× 2

as 7! is multiple of 3! because 7! contains 3! that is 3× 2 as factor

so 7! /(3! ) = 7× 6× 5× 4

= 42 × 20

= 840

its b) 840✌✌✌

dhruv⭐

13664

step-by-step explanation:

=cross multiply

=100 x = 13664

35/2 is it i think maybe