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# Inscribed Square and Triangle

Limits 1s, 512 MB

Observe the following drawing…. You’re given the area of the circle centered at L as in the image and a number that denotes the proportion of area of circles [Proportion = Area(circle of center O) / Area(circle of center L)].

Write a program that will calculate the area of ABCD quadrilateral and BPQ triangle [Shown in the image].

## Input

Input contains only only two floating point number separated by a single space.

Constraints:

You are to take double precision numbers as input. Consider ℼ=arccos(-1).

Area of Triangle

## Sample

InputOutput
```314.15926535897932384626433832795 3.00
```
```100
600
```

Problem Setter: Niloy Sarker

Discussion
Statistics

73% Solution Ratio

sam4i40Earliest, 3M ago

sam4i40Fastest, 0.0s

tanimahossainLightest, 0 B

nstucsteShortest, 154B

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