Zack Rachel and Maddie are unraveling a huge ball of yarn to

Zack, Rachel, and Maddie are unraveling a huge ball of yarn to see how long it is. As they move away from each other, they form a triangle. The distance from Zack to Rachel is 3 meters. The distance from Rachel to Maddie is 2.5 meters. The distance from Maddie to Zack is 4 meters. Find the measures of the three angles is the triangle. m angle Z = 38.6 degree, m angle R = 92.9 degree, and m angle M = 48.5 degree m angle Z = 48.5 degree, m angle R = 38.6 degree, and m angle M = 92.9 degree m angle Z = 92.9 degree, m angle R = 48.5 degree and m angle M = 38.6 degree m angle Z = 60 degree, m angle R = 60 degree, and m angle M = 60 degree

Solution

m=3,z=2.5,r=4

angleZ=cos^-1((m²+r²-z²)/(2mr))

angleZ=cos^-1((3²+4²-2.5²)/(2*3*4))

angleZ=38.6^o

angleR=cos^-1((m²+z²-r²)/(2mz))

angleR=cos^-1((3²+2.5²-4²)/(2*3*2.5))

angleR=92.9^o

angleM=cos^-1((r²+z²-m²)/(2rz))

angleM=cos^-1((4²+2.5²-3²)/(2*4*2.5))

angleM=48.5^o

option A is correct