1,000 Places to See Before You Die (Deluxe Edition): The World as You've Never Seen It Before

1,000 Places to See Before You Die (Deluxe Edition): The World as You've Never Seen It Before

Matematika 3. Perhatikan gambar berikut. с < E 25 cm B 12 cm А D H L 15 cm F G llustrator: Slamet Riyadi Diketahui panjang AD = 14 cm dan BG = 5 cm. Tentukan luas daerah yang diarsir.​

3. Perhatikan gambar berikut. с < E 25 cm B 12 cm А D H L 15 cm F G llustrator: Slamet Riyadi Diketahui panjang AD = 14 cm dan BG = 5 cm. Tentukan luas daerah yang diarsir.​

menentukan panjang CF dengan Teorema Phytagoras

CF² = CA² - FA²

CF² = 25² - 15²

CF² = 625 - 225

CF² = 400 = 20²

CF = 20 cm

luas diarsir

= ½ x AD x (CF + EH - 2 BG)

= ½ x 14 x (20 + 12 - 10)

= 7 x (22)

= 154 cm² ✔️

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# semangat belajar.....

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