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Two sides of a triangle are 10 cm and 12 cm. the perimeter of the triangle is 35 cm.what is it's third side
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First, let's understand the concept of a triangle and its perimeter.

A triangle is a polygon with three sides. The perimeter of a triangle is the sum of the lengths of its three sides.

Given that two sides of the triangle are 10 cm and 12 cm, and the perimeter is 35 cm, we need to find the length of the third side.

To find the length of the third side, we can subtract the sum of the lengths of the two given sides from the perimeter.

So, the length of the third side can be calculated as follows:

Third side = Perimeter - (Length of first side + Length of second side)
Third side = 35 cm - (10 cm + 12 cm)
Third side = 35 cm - 22 cm
Third side = 13 cm

Hence, the length of the third side of the triangle is 13 cm.

To summarize:
- The two given sides of the triangle are 10 cm and 12 cm.
- The perimeter of the triangle is 35 cm.
- The length of the third side can be found by subtracting the sum of the lengths of the two given sides from the perimeter.
- The length of the third side is 13 cm.
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Two sides of a triangle are 10 cm and 12 cm. the perimeter of the triangle is 35 cm.what is it's third side Related: NCERT Solutions(Part - 2) - Mensuration?
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