Question

Vertices of a triangle are (a,b/2) (a/2,b (0,0) and its area is 1/2 sq units then find relation between a and b
answer for 100000 points

Answer 1

Answer:

Given A(2,3,1),B(−2,2,0) and C(0,1,−1)

For △ABC,

a=BC=(−2−0)2+(2−1)2+(0+1)2

​∴a=6

​b=AC=(2−0)2+(3−1)2+(1+1)2

​∴b=12

​c=AB=(2+2)2+(3−2)2+(1)2

​∴c=18

​cos∠ABC=2aca2+c2−b2​=2×32

​×6

​18+6−12​=3

​1​

Step-by-step explanation: