Respuesta :

ujalakhan18

Answer:

BY = 7.1 cm

Step-by-step explanation:

Sin 45 = [tex]\frac{opposite}{hypotenuse}[/tex]

Where opposite = 5 cm, hypotenuse = BY

0.707 = [tex]\frac{5}{BY}[/tex]

BY = 5/0.707

BY = 7.1 cm

tarapoynder
Also 5 cm, as the angles given are 45* and 90*, therefore the other angle is also 45* as angles in a triangle add up to 180*. As sides opposite equal angles are equal, if AY = 5cm, so does BY

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