I think the answer is a=7b*9/2=31.5M
Answer:
1. Square, 10in x 8in, 160in^2
2. Each surface has an area of 80in^2
Step-by-step explanation:
1. Rectangle is the shape of each cut surface which is 10in by 8 in. Since the block was already painted with glitter, she needs to paint both sides of the cut surface only, 2*8in * 10in = 160in^2.
2. Each cut will have a surface area of 10in * 8in = 80in^2
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The area is 18 because there are 14 full squares. The tiny parts altogether make up 4 squares because if you add allthe parts its equal to 4. 14 + 4 = 18