# What is the area of the figure?

ABCDE is a composite figure with an equilateral triangle (△ ABC) and a square BCDE.

## Answer: The area of the figure is 143.3 square centimeters.

Let's find the area of the given composite figure.

**Explanation:**

Given that,

- △ ABC is an equilateral triangle ⇒ AB = BC = CA = 10cm
- BCDE is a square ⇒ BC = CE = DE = DB.

⇒ AB = BD = 10 cm = a (let's say)

Area of the equilateral triangle ABC = (√3/4)a^{2} = (√3/4) × (10)^{2 }= (√3/4) × 100 = 25√3 = 43.3 sq. cm

So, area of △ ABC = 43.3 sq. cm

Area of the square BCDE = a^{2} = (10)^{2 }= 100 sq. cm

So, area of Square BCDE = 100 sq.cm

Area of the composite figure: area of △ ABC + area of the square BCDE

Total area = (√3/4)a^{2} + a^{2} = 43.3 + 100 = 143.3 sq.cm