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finlep [7]
3 years ago
12

How do i even solve this?

Mathematics
1 answer:
Dafna11 [192]3 years ago
3 0

Answer:

Step-by-step explanation:

# 34.

A ≈ 14² - 3.14 × 7² = <em>42.14 cm²</em>

# 35.

A ≈ \frac{20^2 - 3.14 * 10^2}{2} = <em>43</em>  

# 36.

A = 14² - 4 × 5² = 196 - 100 = <em>96 m²</em>

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