Question

3. Two sides of a triangle are 15c, and 17cm. The perimeter of triangle is 42cm. What is the
length of third side?​

Answer 1

Answer:

10cm

Step-by-step explanation:

perimeter of a triangle=a+b+c=42cm

let the third side be x

now,17+15+x=42cm

⇒32+x=42

⇒x=42-32

⇒x=10cm

Answer 2

ANSWER 148

OK

x+17+15=180

x+32=180

x=180-32

x=148