josieward josieward
  • 03-02-2024
  • Mathematics
contestada

what’s is the length of a triangle when two sides are 10.4cm and has an angle of 120

Respuesta :

KiaraL2006
KiaraL2006 KiaraL2006
  • 03-02-2024

Answer:

18.0 cm

Step-by-step explanation:

use the cosine rule:

a^2=b^2+c^2-2bcCos(A)

a^2=10.4^2+10.4^2-2x10.4x10.4Cos(120)

a^2=324.48

a=sqrt(324.48)

a=18.0cm (1dp)

hope this helps :)

Answer Link

Otras preguntas

a parallelogram has an area of 288 ft squared. If the base of the parallelogram is 24 ft, what is the height of the parallelogram​
Need help with this Spanish please
the sector is engaged in providing services to individual consumers and businesses​
graph the line y= -4x+7​
Need help plz???!!???
I need help plz plz plz plz plz plz
2x+5+3-4x please help me
name the property of 78 x 1 = 78
How does thermohaline circulation circulate water and as a result, connect all the world's ocean in one global system.
x^2=100 solve for x, show work