Penjelasan dengan langkah-langkah:
Segitiga siku-siku itu c² = a² + b²
Maka,
(5x)² = (3x)² + 20²
25x² = 9x² + 400
25x² - 9x² = 400
16x² = 400
x² = 400/16
x² = 25
x = √25
x = 5 cm
pythagoras
cara 1
ingat tripel pythagoras → 3, 4, 5
3x, 4x, 5x
4x = 20
x = 20/4
x = 5
cara 2
(3x)² + 20² = (5x)²
(5x)² - (3x)² = 20²
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Verified answer
Penjelasan dengan langkah-langkah:
Segitiga siku-siku itu c² = a² + b²
Maka,
(5x)² = (3x)² + 20²
25x² = 9x² + 400
25x² - 9x² = 400
16x² = 400
x² = 400/16
x² = 25
x = √25
x = 5 cm
pythagoras
cara 1
ingat tripel pythagoras → 3, 4, 5
3x, 4x, 5x
4x = 20
x = 20/4
x = 5
cara 2
(3x)² + 20² = (5x)²
(5x)² - (3x)² = 20²
25x² - 9x² = 400
16x² = 400
x² = 400/16
x² = 25
x = √25
x = 5