Question

Me ajudem pfvr

Calcule o valor de x no caso abaixo, considerando que
r//s:

2x + 1

(A) 47° 30'
(B) 57° 50'
(C) 37° 50'
(D) 38° 30'
(E) 45° 30'

Answer 1

Os ângulos são correspondentes portanto

$\mathsf{2x+15^{\circ}=90^{\circ}}\\\mathsf{2x=90^{\circ}-15^{\circ}}\\\mathsf{2x=75^{\circ}}\\\mathsf{x=\dfrac{75^{\circ}}{2}}$

75 |2

-74 37°30'

1°=60'

$\boxed{\boxed{\boxed{\boxed{\mathsf{x=37^{\circ}30'}}}}}$