Given:
Net of a triangular prism
To find:
Which equation can be used to calculate the surface area of the triangular prism.
Solution:
Using formulas:
Area of rectangle = length × width
Area of triangle =
Area of left triangle =
Area of right triangle =
Area of bottom = 5 × 10
Area of Middle = 12 × 10
Area of top = 13 × 10
Surface area of triangular prism:
Surface area = Area of left triangle + Area of right triangle + Area of bottom + Area of middle + Area of top
Replace multiplication by brackets.
The equation can be used to calculate surface area of triangular prism is
.
Answer:
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Step-by-step explanation:
Answer:
25;41;8;21
Step-by-step explanation:
a) 48=d+23
48-23=d
d=25
b) W-13=28
28+13=W
W=41
c) 9x=72
72/9=x
x=8
d) 84=4n
n=84/4
n=21
Answer:y = -5x + 11
Step-by-step explanation:
First, find the slope (m) of the line that passes through these points:
m = (1-6) / (2-1) = -5/1 = -5
Then use the point slope formula to find the equation of the line:
m = (y-y0)/(x-x0)
-5 = (y-1)/(x-2)
-5(x-2) = y-1
y - 1 = -5x+10
y = -5x + 11
Find the area of just the rectangle, which is 7(4) = 28
Find area of triangle which is 1/2(8)(2) = 8
28+8 = 36 m^2