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Verified answer
Kelas 8 MatematikaBab Garis Singgung Lingkaran
R + r = √(jarak pusat² - garis singgung²)
R + 5 = √(40² - 32²)
R = -5 + √(1.600 - 1.024)
R = -5 + √576
R = -5 + 24
R = 19 cm
Verified answer
≡ penyelesaian :( R + 5 ) = √ j² - d²
( R + 5 ) = √ 40² - 32²
( R + 5 ) = √ 1600 - 1024
( R + 5 ) = √ 576
( R + 5 ) = 24
R = 24 - 5
R = 19 cm