0=15200 são necessárias para fazer 450 brigadeiros? Sub, a mãe de Fábio faz 75 brigadeiros.
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QUESTAO 20. Pepresente, por meio de uma figura, as informações apresentadas​

check the picture below.

well, the angle at the vertex d is clearly not a right-angle, let's check for the one at the vertex f which does look like,   however if it's indeed, that means ef is perpendicular to df, in which case their slopes will be negative reciprocal of each other.

so the negative reciprocal of the slope of ef is 1, however the slope of df is not 1, is 1/2, so nope, they're not perpendicular lines.

i think it is c, not positive though

step-by-step explanation:

6/20

step-by-step explanation: