Question

calculate the bade of a triangle whose area is 11.4 cm2 and altitude is 4cm​

Answer 1

Answer :

The base of the triangle is 5.7cm

Explanation :

Given :

• Area of a triangle 11.4cm²
• It's altitude is 4cm.

Finding it's base

We know that,

Area of a triangle : ½ × base × altitude

Since, the area is 11.4cm²

According to the question,

→ 11.4 = ½ × base × 4

→ 11.4 = 2 × base

→ 11.4/2 = base

[On transposing 2 to L. H. S. ]

→ 5.7 = base

Therefore, the base of the triangle is 5.7cm

Answer 2

Question :

calculate the base of a triangle whose area is 11.4 cm2 and altitude is 4cm

Formula :

Area of ∆ = 1/2 × base × altitude

Solution :

Given that

Area of ∆ = 11.4 cm ²

Altitude = 4 cm

Putting value in formula

11.4 = 1/2× base × altitude

11.4 ×2/4 = Base

Base = 5.4 cm

So, the required answer is 5.4 cm