Find X
put step by step please

x = 29.7 or 29.69848480

Step-by-step explanation:

Use the formula a² + b² = c²

21² = 441

20² = 400

400 + 441 = 882

√882 = 29.7

You square the number at the end to cancel out the squared number, since both 21 and 20 aren't originally squared.

A=2(wl+hl+hw)=2·(3·2+1·2+1·3)=22

Step-by-step explanation:

I reported the other answer HAHAHA here is the correct one