" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
a=5/7 b
O=2b+a=2b+5/7b=2 5/7b
2 5/7b=38
19/7b=38
b=38*7/19
b=14cm
a=14*5/7=10cm
h=?
z tw. Pitagorasa
h^2=b^2-(1/2a)^2
h^2=14^2-5^2=196-25=171=9*19
h=V(9*19) (V - pierwiastek)
h=3V19cm
P=ah/2
P=10*3V19/2=15V19cm^2 pole trójkąta