A rectangle is 4 times as long as it is wide. the perimeter of a rectangle is 50cm. What is the length and width of the rectangle? Define Variables & Write The Equations

width is 5 cm

length is 4 times the width which means 4x5 is 20 cm

the last choice

step-by-step explanation:

(sin 42)/31. = sinx)/37

sinx = 37 (sin42)/31

= 37× 0.66/31 = 0.787

x= 51.9

other angle opposite to y = 180-51.9-42

= 180- 93.9 =86.1

so

sin42)/31 = sin 86.1)/y

0.021 = 0.997 /y

y= 0.997/0.021 =47.47