Sine law

ABC is a triangle in which if a=5 cm.

 $m(\angle A):m(\angle B):m(\angle C)=3\ :\ 4\ :\ 3$ then the perimeter of the triangle ABC = ................cm

• 12

• 15.9

• 13.4

• 20.1

Tags

CCSS.HSG.CO.C.10

XYZ is an equilateral triangle the length of its side is $10\sqrt{3}$   cm. then the length of the radius of its circumcircle is..................

• 5

• 10

• 15

• 20

Tags

CCSS.HSG.C.A.2

CCSS.HSG.C.A.3

 $In\ \Delta ABC\ ,\ 4r\ SinA\ =\ ............$  

• a

• 2A

•  $\frac{1}{2}a$  

• 2a

Tags

CCSS.HSG.SRT.D.9

If r is the length of the radius of the circumcircle of the triangle ABC , then $\frac{a}{4SinA}\ =\ .........$  

• r

•  $\frac{1}{2}r$  

•  $\frac{r}{4}$  

• 2r

Tags

CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11

Use the Law of Sines to solve for BC

• 33
• 24
• 12
• 29

Tags

CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11

Find AC

• 12
• 10
• 23
• 14

Tags

CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11

Identify the Law of Sines

• $\sin^2x+\cos^2x=1$

• $\frac{\sin\left(A\right)}{a}=\frac{\sin\left(B\right)}{b}=\frac{\sin\left(C\right)}{c}$

• $\sin\left(A\right)\sin\left(B\right)\sin\left(C\right)=1$

• Soh Cah Toa

Tags

CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11

For triangle  $ABC$  find  $a$  if  $A=40\degree,\ C=72\degree45',\ c=23.2\ m$  

•  $11.8\ m$  

•  $12.3\ m$  

•  $13.4\ m$  

•  $15.6\ m$  

Tags

CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11