Question

Tolong dikumpul besok dijawab eh kebalik

Answer 1

L.tanah - L.kolam = 28
s^2 - s^2 = 28
( 10 - x )^2 - ( 8- x )^2 = 28
10^2 - x^2- 8^2 -x^2 = 28
100 - 64 - x^2 -x^2 = 28
36 - 2x^2 = 28
-2x^2 = 28-36
-2x^2 = -8
x^2 = -8 : (-2)
x^2 = 4
x. = √4
x. = 2
jadi, luas tanah sebenarnya
= s^2.
= ( 10 - x )^2
= ( 10 - 2)^2
=8^2
= 64 m^2. ( c )