Find the surface area of the space figure represented by the net
Answers
Im pretty the answer is 164 cm. not 124 cm.!!!
14 + 14 + 56 + 40 + 40 = 164
check in a calculator
D. 164 [tex]cm^{2}[/tex]
Step-by-step explanation:
We have that the net includes three rectangles and two triangles.
So, the surface area of the net = area of 3 rectangles + area of 2 triangles.
Now, there are two rectangles having length 8 cm and width 5 cm.
So, the area of this rectangle = length × breadth = 8 × 5 = 40 [tex]cm^{2}[/tex]
Also, one rectangle has length 8 cm and width 7 cm.
So, the area of this rectangle = length × breadth = 8 × 7 = 56 [tex]cm^{2}[/tex]
Now, as there are two triangles having base length 7 cm and height 4 cm.
So, area of both of these triangles = [tex]2 \times \frac{1}{2} \times b \times h[/tex] = [tex]2 \times\frac{1}{2} \times 7 \times 4[/tex] =28 [tex]cm^{2}[/tex].
Therefore, the final area of the net = 40 + 40 + 56 + 28 = 164 [tex]cm^{2}[/tex].
Is there a pic or no
The answer to your question would be second option and it is 124 cm^2.
Solution:
The surface area = area of rectangle 7*8 + area of rectangle 5*8 + two times the area of one triangle
area of rectangle 7*8 = 56 cm²area of rectangle 5*8 = 40 cm² area of one triangle = 0.5 * 7 * 4 = 14 cm²
Total area = 56 + 40 + 2*14 = 124 cm²
The surface area = area of rectangle 7*8 + area of rectangle 5*8 + two times the area of one triangle
area of rectangle 7*8 = 56 cm²
area of rectangle 5*8 = 40 cm²
area of one triangle = 0.5 * 7 * 4 = 14 cm²
Total area = 56 + 40 + 2*14 = 124 cm²
The correct choice is the second.
The surface area is 320 inches, (12 x 4) x 2 = 96
( 4 x 6) x 2 = 48
( 4 x 4) x 2 = 32
( 6 x 12) x 2 = 144
+
320 Inches
this is what i came up with
There isnt enough information on this question, wheres the figure and the answers