" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
b=1dm =10cm
Pb=3*1/2 ah
h=?
h²=b²- (1/2 a)²
h²=10² -6² =100 -36 =64
h=√64
h=8cm
Pb=3*12*8/2
Pb=144 cm²