Luas kedua daerah : (12 * 12) + (15 * 6) = 144 + 90 = 234 cm²
luas yang diarsir = 234 - 198 = 36 cm²
0 votes Thanks 2
5dregensleyerjawaban no 31 s = 52 : 4 = 13 a =1/2 x 10 = 5 d = √13²-5² =√169-25 =√144 = 12 d = 12 x 2 = 24 luas = 24 x 10 : 2 = 120 cm² jawabn A
jawabn soal nomer 32 Luas A = 12² = 144 Luas B = p x l = 15 x 6 = 90 198 = 144 + 90 - 2.arsir 198 = 234 2arsir = 234-198 2arsir = 36 arsir = 36/2 arsir = 18 cm² jawabnnya A
4s = 52
s = 52 / 4
s = 13 cm
panjang 1/2 diagonal lainnya = √s² - 1/2d2²
= √13² - (10/2)²
= √169 - 5²
= √169 - 25
= √144
= 12 cm
panjang diagonalnya = 2 * 12
= 24 cm
Luas belah ketupat = 1/2 d1 d2
= 1/2 * 10 * 24
= 12 * 10
= 120 cm²
==========
Luas kedua daerah :
(12 * 12) + (15 * 6)
= 144 + 90
= 234 cm²
luas yang diarsir = 234 - 198
= 36 cm²
s = 52 : 4
= 13
a =1/2 x 10
= 5
d = √13²-5²
=√169-25
=√144
= 12
d = 12 x 2
= 24
luas = 24 x 10 : 2
= 120 cm² jawabn A
jawabn soal nomer 32
Luas A = 12²
= 144
Luas B = p x l
= 15 x 6
= 90
198 = 144 + 90 - 2.arsir
198 = 234
2arsir = 234-198
2arsir = 36
arsir = 36/2
arsir = 18 cm²
jawabnnya A