Question

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Answer 1

Hey there! Here is your answer.
The answer is 4.

Hope it helps!
Plz mark it as brainliest.

Answer 2

Answer :

The area of triangle is 3.799 unit² (approx)

Step-by-step explanation :

Let the sides of the triangle be a, b and c as 2, 4 and 5 respectively.

Perimeter = a + b + c

⇒ ( 2 + 4 + 5 )

⇒ 11

Semiperimeter = perimeter / 2

⇒ S = 11 / 2

⇒ S = 5.5

Here, we will use Heron's Formula ;

Area = √s ( s - a )( s - b )( s - c )

Area = √5.5 ( 5.5 - 2 )( 5.5 - 4 )( 5.5 - 5 )

Area = √5.5 × 3.5 × 1.5 × 0.5

Area = √14.4375

Area = 3. 799 unit² (approx )

Hence, the area of the given triangle is 3.799 unit² ( approx ).