344293
contestada

In triangle XYZ, Z = 46 cm, x = 45 cm and ZY=81º. Find the length of y, to the nearest
centimeter.

In triangle XYZ Z 46 cm x 45 cm and ZY81º Find the length of y to the nearest centimeter class=

Respuesta :

Because the angle is between the two sides, you use the cosine law, A^2= B^2 + C^2 -2BCosangleA
a^2=46^2+45^2-2*45*46cos81

Otras preguntas