The area of triangle ABC with the given parts is c- 7.3in
The answer this problem is -247
Percent: 80%
Fraction: 12/15
Decimal: 0.8. hope that helped.
Let Zia's age be = x years
Raj is three years older than Zia, so Raj's age = x+3 years
As the sum of the squares of their ages is 369, so
![x^{2}+(x+3)^{2}=369](https://tex.z-dn.net/?f=x%5E%7B2%7D%2B%28x%2B3%29%5E%7B2%7D%3D369)
![x^{2}+x^{2}+6x+9=369](https://tex.z-dn.net/?f=x%5E%7B2%7D%2Bx%5E%7B2%7D%2B6x%2B9%3D369)
![2x^{2}+6x+9=369](https://tex.z-dn.net/?f=2x%5E%7B2%7D%2B6x%2B9%3D369)
![2x^{2}+6x-360=0](https://tex.z-dn.net/?f=2x%5E%7B2%7D%2B6x-360%3D0)
Factoring 2 out we have,
![x^{2}+3x-180=0](https://tex.z-dn.net/?f=x%5E%7B2%7D%2B3x-180%3D0)
Now solving this equation,
![x^{2}+15x-12x-180=0](https://tex.z-dn.net/?f=x%5E%7B2%7D%2B15x-12x-180%3D0)
![x(x+15)-12(x+15)](https://tex.z-dn.net/?f=x%28x%2B15%29-12%28x%2B15%29)
![(x+15)(x-12)](https://tex.z-dn.net/?f=%28x%2B15%29%28x-12%29)
x=-15 and x=12
Neglect the negative value as x cannot be negative
So x=12
Hence, Zia's age is 12 years and
Raj's age is 12+3 = 15 years