## Sup_open~study i need some help with this geometry one year ago one year ago

1. Sup_open~study

2. saifoo.khan

Remember Pythagoras?

3. Sup_open~study

a2 + b2 = c2 ??

4. saifoo.khan

Yes.

5. amorfide

split into right angled triangles xz=yw so you have one side 15 and one side 8 you want to work out the hypotonuse a²+b²=c² 8²+15²=289 square root 289 to get c c=17

6. Sup_open~study

square them and add them and then find the square root yes does it mater witch one is a or b ???

7. Sup_open~study

thanks guys for the help :)

8. REMAINDER

9. amorfide

c is hypotonuse a and b are the others it isnt important for a and b you can re arrange the formula to work out a and b

10. Sup_open~study

thanks guys i got this down now thanks to yall :)

11. ipm1988

use pythagoras theorem since opposite sides of a rectangle are equal base=15 inches and altitude=8 inches Applying pythagoras theorem $15^{2}+8^{2} =h^{2}$ $\sqrt{289}$ =17 therefore length of diagonal is 17