SOAL :

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1.

x = √10² - 8²

x = √100 - 64

x = √36

x = 6 cm [ B. ]

2.

H = √12² + 9²

H = √144 + 81

H = √225

H = 15 cm [ C. ]

3.

AB = √(15 - 10)² + 12²

AB = √5² + 12²

AB = √25 + 144

AB = √169

AB = 13 cm [ A. ]

4.

KN = √15² + (2 + 6)²

KN = √15² + 8²

KN = √225 + 64

KN = √289

KN = 17 cm [ C. ]

5.

14² = 11² + 9²

196 = 121 + 81

196 ≠ 202

202 > 196 [ A. ]

6.

J = √(-5 - 3)² + (6 - (-9))²

J = √-8² + 15²

J = √64 + 225

J = √289

J = 17 Satuan Panjang [ D. ]

7.

PQ : PR = 1 : 2

PQ : 18 = 1 : 2

2PQ = 18

PQ = 18/2

PQ = 9 cm

QR : PR = √3 : 2

QR : 18 = √3 : 2

2QR = 18√3

QR = 18√3/2

QR = 9√3 cm [ C. ]

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