Respuesta :

Answer:

1. 800 cm squared

2. 152 cm squared

Step-by-step explanation:

let break it down

1. 800 cm squared

20 * 7 = 140

20 * 6 = 120

38 - 20 = 18

30 * 18 = 540

now add all of them together

140 + 120 + 540

100 + 100 + 500 = 700

40 + 20 + 40 = 100

700 + 100 = 800 cm squared

2. 152 cm squared

16 * 10 = 160

2 * 2 + 2 * 2 = 4 + 4 = 8

160 - 8 = 152 cm squared

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