tessa1
Note: Wajib sertai langkah pengerjaan dan No Copy Paste!
Note: Wajib sertai langkah pengerjaan dan No Copy Paste!
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luas : 1/2 ( A + B ) × T
180 = 1/2 ( 10 + 20 ) × T
180 = 15T
T = 180/15
T = 12/1
T = 12 CM
CARI ALAS :
( 20 - 10 )/2
= 10/5
= 5 CM
BESAR ALAS :
= 5 CM + 5 CM + 10 CM
= ( 10 + 10 ) CM
= 20 CM
CARI SISI MIRING :
√T² + A²
= √12² + 5²
= √(12.12) + (5.5)
= √144 + 25
= √169
= √13²
= 13 CM
MAKA KELILING :
A + B + C + D
= 20 cm + 13 cm + 10 cm + 13 cm
= ( 20 + 13 + 10 + 13 ) cm
= 56 cm
Jawaban:
jawaban ada pada gambar