In - ABC- if -A-x- -B-y and -C-zsuch that x-4y3 and y-3z8- then -B is equal to

X=43y y=38z ⇒ z=83y ⇒ x+y+z=180^∘ ⇒(43y)+y+(83y)=180^∘ ⇒122y+y=180^∘ ⇒ 5y=180^∘ ⇒ y=36^∘ ⇒∠B=y=36^∘ So, option b is correct. ...

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Applications of Pair of Equations

In Δ ABC, if ...

Question

$I n Δ A B C, i f ∠ A = x, ∠ B = y a n d ∠ C = z$
$s u c h t h a t x = \frac{4 y}{3} a n d y = \frac{3 z}{8}, t h e n ∠ B i s e q u a l t o$

30^{\circ}

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36^{\circ}

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48^{\circ}

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96^{\circ}

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