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jcox626
20.07.2019 •
Mathematics
Each exterior angle of a regular polygon measures 20. how many sides does the polygon have? a. 20 b. 18 c. 15 d. 16
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Ответ:
Ответ:
724cm²
Step-by-step explanation:
The formula is: 2(lw + hl + hw). Our units are 12, 11, and 10. So, the Length, Width, and Height are,
12 is the Length.
11 is the Width
10 is the Height.
Let's solve now. Our problem will be written like this,
2 · (11 × 12) + (10 × 12) + (10 × 11)
Let's solve.
1. Multiply 11 by 12.
11 × 12 = 132
2. Multiply 10 by 12.
10 × 12 = 120
3. Multiply 10 by 11.
10 × 11 = 110
4. Add up all the products.
132 + 120 + 110 = 362
5. Multiply 362 by 2.
362 × 2 = 724
Hence, 724 is the answer.