doris2002 doris2002
  • 03-01-2019
  • Mathematics
contestada

How do I work this out?

How do I work this out class=

Respuesta :

LammettHash
LammettHash LammettHash
  • 03-01-2019

We can find the length of BC:

[tex](BC)^2+6^2=12^2\implies BC=6\sqrt3[/tex]

Then by the law of sines,

[tex]\dfrac{\sin55^\circ}{BC}=\dfrac{\sin90^\circ}{CD}\iff CD=\dfrac{6\sqrt3}{\sin55^\circ}\approx12.7\,\mathrm{cm}[/tex]

Answer Link

Otras preguntas

What'd the average speed of 58 and 312
Find the Area of the figure below, composed of a parallelogram and two semicircles. Round to the nearest tenths place.
To interpret the meaning of the Constitution____________ is used. (а) Constituent Assembly Amendment(b) Constituent Assembly Meetings(c) Constituent Assembly De
May I please receive help on this question
9x-4x+14< 3 ( x+6 )
Source credibility meaning
is it possible to cut a square with the length of side equals 1m out of the circle piece of tin with the diameter 1.4m?
Given the function f(x) = x − 5, determine the value of f(f(−1)). A. –8 B. 16 C. 11 D. –4
Calculate the kinetic energy of a 40 kg rock if the rock rolls down the hill with a velocity of 8 m/s.
Name some of the bad practices prevailing in our society because of superstition?? plss helppp mee​