10•4=40. 40 is the perimeter of the square. To find the perimeter of the semicircle use the circle perimeter (circumference) formula and divide that answer by two. This would be pi•10. You get 31.4. Then divide by 2 so it’s 15.7. Finally add 15.7 and 40. Hope this helps... sorry it’s such a long answer
Jack was planting a tree. He was to dig a hole that was 3 feet deep for every 5 feet of tree height. How deep should he dig the hole for a tree that is 17feet high.
Calculations
Cross multiplication
![\frac{3 DEEP}{5 HIEGHT}](https://tex.z-dn.net/?f=%20%5Cfrac%7B3%20DEEP%7D%7B5%20HIEGHT%7D%20)
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5x = 2 x 13
Divide by 5 to isolate x
![\frac{5x}{5}](https://tex.z-dn.net/?f=%20%5Cfrac%7B5x%7D%7B5%7D%20)
=
x = 10.2
Answer = 10.2
Answer:
It would be 2 times the old perimeter.
Answer: a. 10 and 12
explanation: