Question

perimeter of triangle is 15 cm. if length of one side is 4 cm ,the sum of other two side is​

Answer 1

Answer:

Perimeter = 15cm.

Side1 = 4cm.

perimeter of triangle = side1 + side2 + side3

15 = 4 + s1 + s2

s1 + s2 = 15 - 4

s1 + s2 = 11cm.

The sum of other two side is 11cm.

Answer 2

Answer:

The sum of the other two sides is 11 cm.

Step-by-step explanation:

The formula for the perimeter of a triangle:

a + b + c = P. (where a is side 1, b is side 2, c is side 3 and P is the perimeter.)

Assuming that the side which measures 4 cm is side a, it can be substituted into the formula as shown below:

4 + b + c = 15.

Subtract 4 from both sides.

b + c = 11.

Therefore, the sum of the other two sides is 11 cm.