In a 30cm by 25cm rectangle, a quadrant of a circle of radius 7cm has been cut away from each corner. What is the perimeter of the part left? and also what is the area of the part left

97.96 cm

596.14 cm²

Step-by-step explanation:

sides become:

30 cm ⇒ 16 cm 25 cm ⇒ 11 cm

and added corners:

4*2πr/4 = 2πr = 2*3.14*7 cm = 43.96 cm

then perimeter is:

P = 2*16+2*11+43.96 = 97.96 cm

the area left is:

A = 30*25 - 4*1/4*3.14*7² = 596.14 cm²