Question

the sides of a triangle measure 9 cm. 15 cm and 17 cm. Then, the semiperimeter =_______ cm​

Answer 1

Answer:

20.5cm or 41/2 cm is the semi perimeter

Answer 2

Answer :

• Semi - Perimeter is 20.5cm

Given :

• The sides of a triangle measure 9cm , 15cm and 17cm

To find :

• Semi - perimeter

Solution :

Given,

• The sides of triangle measure 9cm , 15cm and 17cm.

Let ,

• a = 9cm
• b = 15cm
• c = 17cm

As we know that ,

• Semi perimeter = a + b + c / 2

⟿ 9 + 15 + 17 / 2

⟿ 41/2

⟿ 20.5 cm

Hence , Semi - Perimeter is 20.5cm