Question

please solve the question number 1,2 steps by step in a copy with solutions

Answer 1

Answer:

(i) 14.29(approx)  

(ii) 37 . 6 cm

Step-by-step explanation:

(i) see it is a quadrant which means it's curved perimeter should be

2πr / 4 and add '4' two times it is also under perimeter

note that

r = 4 cm

so 2πr / 4 = 2 * 22 / 7 * 4 /4  = 44 / 7

total perimeter  = 44 / 7 +4+4 = 14.29(approx)  

(ii) in this one quadrant is cut so curved perimeter will be

3 * 2πr / 4 and add "5.6" twice

note that here

r = 5.6 cm

=> 3 * 2πr / 4 =  6 * 22 / 7 * 5.6 / 4 = 26.4 cm

total perimeter =  26.4 + 5.6 + 5.6 = 37 . 6 cm