Luas bangun
Luas 1 (1/2 lingkaran)
= 1/2 × πr²
= 1/2 × 22/7 × 7²
= 1/2 × 22/7 × 49
= 77 cm²
Luas 2 (persegi panjang)
= p × l
= 14 × 7
= 98 cm²
Luas 3 (1/4 lingkaran)
= 1/4 × πr²
= 1/4 × 22/7 × 7²
= 1/4 × 22/7 × 49
= 38,5 cm²
Luas bangun total
= luas 1 + luas 2 + luas 3
= 77 + 98 + 38,5
= 213,5 cm² ❲d.❳
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
Verified answer
Luas bangun
Luas 1 (1/2 lingkaran)
= 1/2 × πr²
= 1/2 × 22/7 × 7²
= 1/2 × 22/7 × 49
= 77 cm²
Luas 2 (persegi panjang)
= p × l
= 14 × 7
= 98 cm²
Luas 3 (1/4 lingkaran)
= 1/4 × πr²
= 1/4 × 22/7 × 7²
= 1/4 × 22/7 × 49
= 38,5 cm²
Luas bangun total
= luas 1 + luas 2 + luas 3
= 77 + 98 + 38,5
= 213,5 cm² ❲d.❳