Question

a rectangle sheet of paaper is 12½cm long and 10 ⅔ wide . find its perimeter​

Answer 1

perimeter of a rectangle paper = 2(l+b)

= 2( 25/2 + 32/3)

= 2( 76/6 + 64/6)

= 2( 140/6)

= 140/3cm = 46⅔ = 46.66cm

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Answer 2

Answer:

We start with the following observation: If a formula Θ expresses a H-coloring problem (i.e. G⊨Θ if and only if G→H the negated formula ⇁Θ is preserved by homomorphisms:

G⊨⇁ΦandG→G′⇒G′⊨⇁Φ

(1.10)