4. hitunglah luas persegi yang panjang sisinya sebagai berikut: a. 9 cm c.6,5 cm d. 3a cm b. 14 cm
5. kell sebuah persegi 48 cm. hitunglah luas persegi tersebut!
liwonsubagyo
A) L = s x s = 9 x 9 = 81cm² b) L = s x s = 14 x 14 = 196cm² c) L = s x s = 6,5 x 6,5 = 42,25cm² d) L = s x s = 3a x 3a = 9a²cm² 5) K = 4 x s 48 = 4 x s s = 48 : 4 = 12cm L = s x s = 12 x 12 = 144cm²
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yula1
4a. s x s = 9 x 9 = 81cm² 4b. s x s = 14 x 14 = 196 cm² 4c. s x s = 6,5 x 6,5 = 42,25 cm²
5. 48 : 4 = 12cm (sisinya) s x s = 12 x 12 = 144 cm²
= 9 x 9
= 81cm²
b) L = s x s
= 14 x 14
= 196cm²
c) L = s x s
= 6,5 x 6,5
= 42,25cm²
d) L = s x s
= 3a x 3a
= 9a²cm²
5) K = 4 x s
48 = 4 x s
s = 48 : 4
= 12cm
L = s x s
= 12 x 12
= 144cm²
4b. s x s = 14 x 14 = 196 cm²
4c. s x s = 6,5 x 6,5 = 42,25 cm²
5. 48 : 4 = 12cm (sisinya)
s x s = 12 x 12 = 144 cm²