Question

Anyone that can help me with this please?Not soo good at math.​

Answer 1

As it is right angled , we can use pythagoras theorem.

Using the therorem :

(x+2)² + (4x+4)² = (5x)²

x² + 4x + 4 + 16x² + 32x + 16 = 25x²

25x² - 17x² - 36x - 20 = 0

8x² - 36x - 20 = 0

2x² - 9x - 5 = 0

2x² -10x + x - 5 =0

2x(x-5) + 1(x-5) =0

(x-5)(2x+1) = 0

x = 5 or x = -1/2

x cannot be -1/2 as it would make hypotenuse negative.

So x = 5

Sides are 7 m, 24 m , 25 m

The area = 1/2 × base × height

Area = 1/2 × 24 × 7 = 84 m²

Answer 2

Answer:

$84 {m}^{2}$