" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
1/2 a * h
1/2 * 7 * h = 42
3,5 * h = 42
42 : 3,5 = 12
h = 12
42cm²=1/2a*7cm
42cm²=a*3,5cm /3,5
12cm=a
druga przyprostokątna wynosi 12 cm