VElaineT
A. 14 x 9 -------- = 63 cm2 2 B. 9 x 24 --------- = 108 cm2 2 C. ( 24 + 14) x 9 38 x 9 ------------------- = ----------- = 171 cm2 2 2
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Atqiya
A. luas segitiga ABD = 14 X 9 /2 = 7 X 9 = 63 cm persegi b. luas segitiga BCD = 24 x 9 /2 = 12 x 9 =108 cm persegi c. luas bangun ABCD = (a + b) x t / 2 = (14 + 24) x 9 /2 = 38 x 9/2 = 19 x 9 =171 cm persegi
-------- = 63 cm2
2
B. 9 x 24
--------- = 108 cm2
2
C. ( 24 + 14) x 9 38 x 9
------------------- = ----------- = 171 cm2
2 2
= 7 X 9
= 63 cm persegi
b. luas segitiga BCD = 24 x 9 /2
= 12 x 9
=108 cm persegi
c. luas bangun ABCD = (a + b) x t / 2
= (14 + 24) x 9 /2
= 38 x 9/2
= 19 x 9
=171 cm persegi