Which of the following length of sides will form a right angled triangle? b) 5cm , 12cm , 17cm a) 6cm , 9cm 15cm d) 4cm , 6cm, 20cm. c) 8cm 15cm 17 cm
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Step-by-step explanation:
right angle triangle doesn't depend on the length .. it depends on the angle..
If the angle is 90 degrees its right-angled triangle
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a) Longest side = 5 cm
A = 2 cm
B = 2 cm
(5)² = 25
2² + 2² = 4 + 4 = 8
25 ≠ 8
Hence it does not form a right angled triangle.
b) Longest side = 17 cm
A = 15 cm
B = 8 cm
17² = 289
15² + 8² = 225 + 64 = 289
289 = 289
Hence it forms a right angled triangle.
c) Longest side = 10 cm
A = 6 cm
B = 9 cm
10² = 100
9² + 6² = 81 + 36 = 116
100 ≠ 116
Hence it does not form a right angled triangle.
d) Longest side = 15 cm
A = 12 cm
B = 13 cm
15² = 225
12² + 13² = 144 + 169 = 313
225 ≠ 313
Hence it does not form a right angled triangle.
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