Question

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Answer 1

a) 400

b)160,000

Explanation:

times 20 by 20 hence 20² for a. you get 400, for b, just do 400² which gets you 160,000.

If its wrong im so sorry

Answer 2

Well, If the area of ABC is 20cm², Then the area of ABS would be 10cm² and the area of ACS would also be 10cm². You basically are just cutting the ABC in half. I hope this helps!