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Question

Exterior angles of a triangle are 120o each. One side of the triangle is 6 cm. Find the dimension of the other two sides.

A
3 cm
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B
4 cm
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C
6 cm
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D
12 cm
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Solution

The correct option is C 6 cm
Exterior angles of a triangle are 120o each.
The interior angles are 180o120o=60o

Hence, it is an equilateral triangle, i.e., all sides have equal dimensions.

All the sides have the dimension of 6 cm.

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