Question

Tolong ya pake cara YANG DICARI LUAS DAN KELILING tolong dijawab semuanya hari senin dikumpulkan semunya yaaa tolong

Answer 1

1. K = 5 + 20+10+5+(20-5) = 55 cm
   L1= p x l = 5 x 10 = 50 cm²
   L2 = p x l = 5 x (20-5) = 5 x 15 = 75 cm²
   L total = L1 + L2 = 50 + 75 = 125 cm²

2. K = 42+50+42+15+10+15 = 174 cm
   L1 (2 segitiga) = a x t = ((50-10)/2) x (15+15) = 20 x 30 = 600 cm²
   L2 = p x l = 10 x 15 = 150 cm²

3. K 1/2 lingkaran = πr = 22/7 x 21 = 66 cm
   K total = 66 cm + 42 + 42 + 42 = 192 cm
   L 1/2 lingkaran = 1/2πr² = 1/2 . 22/7 . 21 .21 = 693 cm²
   L persegi = s x s = 42 x 42 = 1764 cm²
   L total = 1764-693 = 1071 cm²

4. K = 10 + 12 + 8 + 12 + 6 = 48 cm
   L1 (jajar genjang) = a x t = 8 x 10 = 80 cm²
   L2 = axt/2 = 6x10/2 = 30 cm²
   L total = 80 + 30 = 110 cm²

5. K 1/2 lingkaran = πr = 3,14 x 10 = 31,4 cm
   K total = 31,4 + 20 + 20 + 13 + 13 = 97,4 cm
  L 1/2 lingkaran = 1/2πr² = 1/2 . 3,14 . 10.10 = 157 cm²
  L segitiga = axt/2 = 20x6/2 = 60 cm²
  L persegi = s x s = 20 x 20 = 400 cm²
  L total = 400-60-157= 183 cm²

6. K 1/2 lingkaran = πr = 3,14 x 4 = 12,56 cm
   K total = 16 + 5 + (16-4) + 12,56 + 5 = 50,56 cm
   L persegi panjang = p x l = 16 x 5 = 80 cm²
   L 1/2 lingkaran = 1/2πr² = 1/2 . 3,14 . 4 . 4 = 25,12 cm²
L total = 80 + 25,12 = 105,12 cm²
Jadikan jawaban tercerdas ya :)