Can someone please help me ASAP
1 answer:
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Answer:
C. 510 cm^2
Step-by-step explanation:
Well to find TSA or Total Surface Area,
We need to find the area of al the triangles and rectangles.
Let's start with the 2 rectangles facing forwards.
They both have dimensions of 5*15 and 12*15,
75 + 180
= 255 cm ^2
Now let's do the back rectangle which has dimensions of 15 and 13.
15*13 = 195 cm^2
Now we can do the top and bottom triangles,
Since we don't have height we can use the following formula,
S is
S= 15
Now with s we can plug that in,
The a b and c are the sides of the triangle.
So let's solve,
15 - 5 = 10
15 - 13 = 2
15 - 12 = 3
10*2*3 = 60
60*15 = 900
= 30 cm^2
Since there is 2 triangles with the same dimensions their areas combined is 60 cm^2
60 + 255 + 195 = <u><em>510 cm^2</em></u>
<em>Thus,</em>
<em>the TSA of the right triangular prism is C. 510 cm^2.</em>
<em>Hope this helps :)</em>
There exists the same question from other source that has the image of the drawing. Attached to this answer is the image.
To solve this, first we have to assume ratios.
Real Height / Shadow = 56 / 49
Real Height / 28 = 56 / 49
49 * h = 56 * 28
49h = 1568
Then, we have to divide both sides by 9
h = 32
Therefore, the obelisk is 32 ft
C is correct answer to this question.
To solve this, first we have to assume ratios.
Real Height / Shadow = 56 / 49
Real Height / 28 = 56 / 49
49 * h = 56 * 28
49h = 1568
Then, we have to divide both sides by 9
h = 32
Therefore, the obelisk is 32 ft
C is correct answer to this question.