Question

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Answer 1

6. 6^2 + 8^2 = 36 + 64 = 100 = 10^2

Therefore, a) is a right angled triangle

7. The other two equal sides are 6 and 6 cm

Step-by-step explanation:

a^2 + b^2  = c^2             [pythagoras]

But a = b                         [isosceles]

therefore a^2 + a^2 = c^2

2 * a^2 = c^2

2 * a^2 = 72

a^2 = 36

a = 6

b = 6