Answer:
1. S = 184cm^2
2. S = 1446 cm^2
Step-by-step explanation:
In order to calculate the surface area you take into account the five faces of a triangular prism. You calculate the area of two rectangle triangle, and three rectangles. This can be summarized in the following formula:
![S=\frac{1}{2}hw+\frac{1}{2}hw+hl+sl+wl\\\\S=hw+(h+s+w)l](https://tex.z-dn.net/?f=S%3D%5Cfrac%7B1%7D%7B2%7Dhw%2B%5Cfrac%7B1%7D%7B2%7Dhw%2Bhl%2Bsl%2Bwl%5C%5C%5C%5CS%3Dhw%2B%28h%2Bs%2Bw%29l)
h: height
w: width
s: slope
l: length
1. By replacing you obtain:
![S=(6cm)(4cm)+(6cm+10cm+4cm)(8cm)=184cm^2](https://tex.z-dn.net/?f=S%3D%286cm%29%284cm%29%2B%286cm%2B10cm%2B4cm%29%288cm%29%3D184cm%5E2)
2.
![S=(18cm)(7cm)+(18cm+30cm+7cm)(24cm)=1446cm^2](https://tex.z-dn.net/?f=S%3D%2818cm%29%287cm%29%2B%2818cm%2B30cm%2B7cm%29%2824cm%29%3D1446cm%5E2)
Length of AB: 8 - - 6 = 14
Mid point at half length: 14/2 =7
—>Point G
Given:
This year's price - 15,795
Increase in price - 5.5%
We simply multiply the rate of increase to this year's price to get the value of increase.
15,795 x 5.5% = 868.725 rounded up to 868.73
Add the value of increase to this year's price to get next year's price.
15,795 + 868.725 = 16,663.725 rounded up to 16,663.73
We can also solve for next year's price by adding 5.5% to 100% and multiplying its sum to 15,795
15,795 * 105.5% = 16,663.725 rounded up to 16,663.73
Answer:
Boys x 2 = Girls
Step-by-step explanation:
If there are twice as many girls in school as boys than take the number of boys and multiply that by 2. For example if there are 400 boys in school and there are twice as many girs your equation would, 400 x 2 = 800 girls.