" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
c²=20²+21²=400+441=841
c=29
0,5·29·h=210
h= 210÷ 14,5
h≈14,5 cm
a=20cm
b=21cm
c=?
h=?
c²=a²+b²
c²=20²+21²
c²=400+441
c²=841
c=√841
c=29 cm
P=1/2 ab
P=1/2 ch
czyli :
1/2 ab=1/2 ch /:1/2c
h=ab/c
h=20*21/29
h=420/29
h=14 i 14/29 cm