Question

option
1500√3meter2
1500meter2
500√3meter2​

Answer 1

Answer:

option a = 1500root(3) meter2

Step-by-step explanation:

Let the sides be 3x, 5x and 7x

therefore

Perimeter = 3x + 5x + 7x

300 = 15x

x = 20

sides

• 3x is 60
• 5x is 100
• 7x is 140

now going through Herons Formulae,

s = perimeter /2 = 150

area = root(s(s-a)(s-b)(s-c))

area = root(150(150-60)(150-100)(150-140))

area = root(150 * 90 * 50 * 10)

area = root(6750000)

are = 1500 root(3)