Question

Me ajudem por favor , presciso disto pra hj

Answer 1

a)80%100=80

80x80.y=180

1600y=180

y=180/1800

y=18/180

1/10=0,1

b)

x2=180÷11,25=16

×=4

4) b=2h

bxh/2=4

2h×h=4

2h2=4

h=raiz de 2

b=2raiz 2