The surface area of a shape is the area of each face added together.
Triangles
The area of a triangle is 1/2*w*h. So 1/2*6*8 = 24. We have two of these faces, so we'll add this twice.
Outer Rectangles
The area of a rectangle is w*h, so for these we'll do 9*20 = 180. These shapes are again duplicates, so we'll add them twice.
Center Rectangle
Again, we know the area of a rectangle is w*h, so 6*20 = 120. This is the only shape that isn't repeated.
Finally, we need to add the areas of the shapes up.
24 + 24 + 180 + 180 + 120 = 528
Therefore the surface area of the net is 528 cm^2.
Answer: if you're asking how to write it then it would be 7:21
Step-by-step explanation:
First, you find the area of one triangle.
Area of Triangle= 1/2 base x height
here we plug in
(1/2)5 x 7
2.5 x 7
17.5
So 17.5 is the area of one triangle, you have 4
so we multiply 17.5 x 4= 70
Now we need to find the area of the base which is a square so the area = length x width or side x side
plug in 5 x 5= 25
so we add everything up 70+25= 95
Answer is choice c 95 ft sq.
Answer: 212 7/20
Step-by-step explanation: We know that 212 is the whole number. So we need to convert .35 into a fraction in simplest form. Any decimal that has a hundredths place will be divided by 100 to get the fraction. In this case that fraction would be 35/100. And to convert that into simplest form, you need to find the least (or lowest) common denominator which is 5. Then you divide the numerator and denominator by 5 and get 7/20, so your answer is 212 7/20