Consider a graph y= sqrt (100-x^2), i need to find area unde

Consider a graph y= sqrt (100-x^2), i need to find area under curve for values of x=[-5,5]

what i get from the graph is a semicircle,with radius=10 and center at (0,0).

For the area under curve for x=[-5,5],

Hi, If you have already learnt integration by substitution, you may consider the substitution

Cheers,
Wen Shih