Diketahui :
Tinggi limas 8 cm
tinggi sisi tegak 10 cm
Ditanya :
sisi alas = ?
Jawaban :
1/2 × sisi alas = √ 10² - 8²
= √ 100 - 64
= √ 36
= 6 cm
sisi alas = 6 × 2 = 12 cm
luas permukaan = L alas + 4 L sisi tegak
= ( 12 × 12 ) + 4 ( 1/2 × 12 × 10 )
= 144 + 240
= 384 cm²
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
Diketahui :
Tinggi limas 8 cm
tinggi sisi tegak 10 cm
Ditanya :
sisi alas = ?
Jawaban :
1/2 × sisi alas = √ 10² - 8²
= √ 100 - 64
= √ 36
= 6 cm
sisi alas = 6 × 2 = 12 cm
luas permukaan = L alas + 4 L sisi tegak
= ( 12 × 12 ) + 4 ( 1/2 × 12 × 10 )
= 144 + 240
= 384 cm²