Question

porfis ayúdenme a calcular la área sombreada ​

Answer 1

1.

20x10=200cm

a= 3.1416*5²

a= 3.1416*25

a= 78.54 cm²

78.54*2 = 157.08

200-157.08 = 42.92cm²

2.

a=bh

a=27.4*13.1

a=358.94cm²

358.94÷2 = 179.47 cm²

3.

a=b

a= 80*100

a = 8000

8000÷2 = 4000 cm²

a = 3.1416*40²

a = 5026.56

5026.56÷4 = 1256.64 cm²

4000+1256.64 = 5256.64 cm²