## anonymous 3 years ago Find the length of the hypotenuse of a right triangle with legs of 20 cm and 21 cm. 41 cm 841 cm 6 cm 29 cm

1. anonymous

$H= \sqrt{(20)^2+(21)^2}$

2. anonymous

|dw:1352146014111:dw|

3. anonymous

|dw:1352138840805:dw|$c^2=a^2+b^2$

4. anonymous

so i have to find out what H is?

5. anonymous

yes

6. anonymous

$H= \sqrt{(20^2)+(21^2)}$

7. anonymous

20 * 20 = 400 21 * 21 = 441 add those 400 + 441 then take the sqrt and that's the missing angle

8. anonymous

841cm

9. anonymous

$\sqrt{841cm}$ sqrt it and the answer is?

10. anonymous

so then 29cm

11. anonymous

yes ma'am