Law of Sines shows the relation between the Sides and Angle of triangle. It states that, the ratio of the length of a side of a triangle to the sine of the angle opposite to that side is same for all sides and angle in triangle.

Select Which value you are providing ((Side(a) , Angle(B) , Side(b)) and (Side(a) , Angle(C), Side(c)) and (Side(b) , Angle(A) , Side(a)) and (Side(b) , Angle(C) , Side(c)) and (Side(c) , Angle(A) , Side(a)) and (Side(c) , Angle(B) , Side(b)) and (Angle(A) , Angle(B) , Side(b)) and (Angle(A) , Angle(C) , Side(c)) and (Angle(B) , Angle(A) , Side(a)) and (Angle(B) , Angle(C) , Side(c)) and (Anlge(C) , Angle(A) , Side(a)) and (Angle(C) , Angle(B) , Side(b)) input value and click on Calculate.

##### Law of Sines

A=Angle A

a=Side a

B=Angle B

b=Side b

C=Angle C

c=Side c

K=Area

s=SemiPerimeter

P=Perimeter

r=Radius of inscribed circle

R=Radius of circumscribed circle

Calculation Options

Inscribed Circle Radius

r =

Circumscribed Circle Radius

R =

### How to use Law Of Sines Calculator?

Step by step procedure for Law Of Sines Calculator is as follows.

**Step 1: **Select which value you will be providing? Dropdown list has Side (a) , Angle (B) , Side (b) and Side (a) , Angle (C) , Side (c) and Side (b) , Angle (A), Side (a) and Side (b) , Angle (C), Side (c) and Side (c) , Angle (A), Side (a) and Side (c) , Angle (B), Side (b) and Angle (A) , Angle (B), Side (b) and Angle (A) , Angle (C), Side (c) and Angle (B) , Angle (A), Side (a) and Angle (B) , Angle (C), Side (c) and Angle (C) , Angle (A), Side (a) and Angle (C) , Angle (B), Side (b) options.

**Step 2: **Input appropriate value as per selected type in Step 1.

**Step 3: **Now click on "Calculate" button to get result.

You will get Angle (A) , Angle (B) , Angle (C) , Side (a) , Side (b) , Side (c), Area (K) , Perimeter (P) , SemiPerimeter (s) , Altitude of Side Length (ha) , Altitude of Base (hb) , Altitude of Hypotenuse (hc) , Inscribed Circle Radius (r) , Circumscribed Circle Radius (R) as per your value input.