Question

Q10) Find the semi perimeter of a triangle having sides 45cm ,49cm and 96cm.​

Answer 1

Answer:

s=45+49+96/2

s=190/2

=95 is the semi perimeter of triangle

Step-by-step explanation:

make me as Brainlist and follow me

Answer 2

Given:

Sides of triangle:

• a = 45 cm
• b = 49 cm
• c = 96 cm

To find:

• Semi - perimeter of triangle?

Solution:

⌬ Let semi - perimeter of ∆ be s cm.

We know that,

Semi - perimeter = Perimeter/2

And,

Perimeter = sum of all sides of ∆

Therefore,

⇏ s = (a + b + c)/2

⇏ s = (45 + 49 + 96)/2

⇏ s = 190/2

⇏ s = 95 cm

∴ Hence, Semi - perimeter of triangle is 95 cm.

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

More to know:

• Area of triangle using Heron's formula = √s(s-a)(s-b)(s-c)
• Area of right angled triangle = 1/2 × b × h