Question

Alguem pode me ajudar nessa conta?

Answer 1

Explicação passo a passo:

1-Teorema de Pitágoras:

$a^2=b^2+c^2\\a^2=28^2+21^2\\a^2=784+441\\a=\sqrt{1.225} \\a=5*7\\a=35\\mmc:\\1.225/5\\245/5\\49/7\\7/7\\1/$

2-

$b^2=9*25\\b=\sqrt{225}\\x=3*5*\\x=15\\\\mdc:\\225/3\\75/3\\25/5\\5/5\\1/$

b)

$c^2=9*5\\x=\sqrt{45}\\x= 3*\sqrt{5}\\ mdc:\\45/3\\15/3\\5/5\\1/$

c)

$5*h=3*4\\h=12/5$

d)

$h^2=4*16\\h=\sqrt{64} \\h=8$