Question

2 of the sides of a triangle are 3.2 cm and 4.6 cm. The perimeter of the

10.5 cm. Determine the third side.

Answer 1

I am not sure about it but u take 3.2 and 4.6 cm away from 10.5

Answer 2

2.7cm

Explanation:

To find the answer, you would need to subtract the total perimeter by the 2 sides.

10.5cm - 4.6cm (side 1) = 5.9cm

5.9cm - 3.2cm (side 2) = 2.7cm

To prove this, all you would need to do is add up all three sides of the triangle to see if you get the perimeter.

4.6cm (side 1) + 3.2cm (side 2) + 2.7cm (side 3) = 10.5cm

Another way you could do this is by adding the two sides you were originally given, and subtracting them by the perimeter.

4.6cm (side 1) + 3.2cm (side 2) = 7.8cm

10.5cm (perimeter) - 7.8cm = 2.7cm