I NEED HELP ASAP Fanks luv

P = 9; A = 3

Step-by-step explanation:

a)

1. ATC is similar to GDO

2. 12 / 3 = 4

3. Triangle A has to be divided by 4 to figure out what Triangle B is

4. GD = 3, GO = 4, DO = 2

5. P = 3 + 4 + 2 + 9

b)

1. B = 2, H = 3

2. Plug into given equation (A = 1/2bh)

3. A = 1/2*2*3

4. 1/2 * 6

5. A = 3

it's equivalent, so we can say that its equal.

let's call the denominator x and the numerador is 18 less then denominator, x - 18.

multiply

2.x = 5.(x - 18)

2x = 5x - 90

90 = 5x - 2x

90 = 3x

x = 90/3

x = 30

so: