Tolong dijawab ya pakai cara bsk dikumpulin no 8 dan 9 aja ya..
KFAHap
8.a. ab^=ob^-oa^ =25^-7^ =625-49 ab^=576 ab =24 cm b. L.oab = ab x ao / 2 = 24 x 7 /2 = 84 cm^ c. L. oabc = L. oabx2 = 84x2 = 168 cm^ d. ac.ob/2 = L.oabc ac.25/2 = 168 ac= 168 x 2/25 = 336/25 ac = 13,44 cm
9. ac.bd/2 = 192 ac.12/2 = 192 ac.6 = 192 ac = 192/6 ac = 32 cm
=25^-7^
=625-49
ab^=576
ab =24 cm
b. L.oab = ab x ao / 2
= 24 x 7 /2
= 84 cm^
c. L. oabc = L. oabx2
= 84x2
= 168 cm^
d. ac.ob/2 = L.oabc
ac.25/2 = 168
ac= 168 x 2/25
= 336/25
ac = 13,44 cm
9. ac.bd/2 = 192
ac.12/2 = 192
ac.6 = 192
ac = 192/6
ac = 32 cm
L.abc = L.abcd/2
= 192 / 2
= 96 cm^
* ^ : kuadrat