The surface area of the pyramid is 576.
<em>The square base is 144. It's just a square, so you multiply 12 (length) and 12 ( width) , which equals 144. </em>
<em>Then you find the area of one of the triangles. The equation to find triangles goes like this: 0.5 x B (base: 12) x H (height: 18). That would be 6 x 18 which is 108.</em>
<em>Since you got the area of 1 triangle and there are 4 triangles you have to multiply 108 by 4. That'll give you 432.</em>
<em>SO since you have the area of all the triangles and the square base the last thing you have to do is just add it all up. </em>
<em>The area of the triangles plus the area of the square base = the surface area.</em>
<u>432 cm + 144 cm =576 cm.</u>
Answer:
21.6 ft
Step-by-step explanation:
area of a square 7.5ft
7.5ft ÷ 2 = 3.75
then V = LWH/3
(Lenght, Width and height over 3)
Answer:
1) $0.05
2) $5.00
Step-by-step explanation:
1)
1.2/24 = 0.05
2)
22.5/4.5 = 5
The science books can be placed before or after the English books, so that’s two ways science-English or English-science.
There are 24 ways to arrange the 4 science books and 2 ways to arrange the English books.
So we have 24×2+2×24=96.
Answer:
Step-by-step explanation:
Let
x ----> the number
we know that
The word "at least" means "greater than or equal to"
6 times a number is the same that multiply the number by 6
so
The inequality that represent this situation is