A paper is in the form of rectangle of dimensions 21cm by 15cm .A semicircle along its length is cut off .Find area of remaining part
Answers
Area of Remaining path = area of rectangle - area of semicircle
= 21*15 - π*(10.5)^2/2 = 141.82 cm^2
Answer:
Step-by-step explanation:
length will be always longer than breadth
length = 21 and breadth = 15
now a semicircle is cut of in length
diameter of semicircle = 21
radius = 21/2
now area of semicircle= pie x r² / 2
= 22/7 x 21/2 x 21/2 x 1/2
= 33 x21 /4
= 696/4
= 174 cm²
area of the paper = 15 x 21
= 315 cm²
area of remaining part = area of rectangular paper - area of semicircle
= 315 - 174
= 141 cm²
please mark brainlist