Answer:
Letter c is the answer
Step-by-step explanation:
Sorry if my answer is wrong
positive numbers are to the right or up, negative numbers are to the left or down.
So this means 1 unit left and 7 units up.
Answer: Choice C) 124 square cm
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Explanation:
Let's calculate the area of the trapezoid shown
b1 and b2 are the parallel bases; h is the height of the 2D trapezoid
b1 = 2
b2 = 5
h = 1.5
A = h*(b1+b2)/2
A = 1.5*(2+5)/2
A = 1.5*7/2
A = 10.5/2
A = 5.25
The area of one 2D trapezoid is 5.25 sq cm
There are two of these trapezoids that form the base faces of the trapezoidal prism. So the total base area is 2*5.25 = 10.5 sq cm
Keep this value (10.5) in mind. We'll use it later.
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Now onto the lateral surface area (LSA)
It turns out that the formula for the LSA is
LSA = p*d
where
p = perimeter of the trapezoid shown
d = depth or height of the 3D trapezoid (I'm not using h as it was used earlier)
This formula works for any polygonal base. It doesn't have to be a trapezoid.
In this case the perimeter is,
p = 1.7+2+2.65+5
p = 11.35
So
LSA = p*d
LSA = 11.35*10
LSA = 113.5
Add this LSA to the base area found earlier
10.5+113.5 = 124
The total surface area is 124 square cm
Answer:
26 units
Step-by-step explanation:
The distance is found by subtracting the numbers
13- -13
13 + 13
26
We know that -13 to 0 is 13 units
0 to 13 is 13 units
13 + 13 is 26 units
Answer:
0 and - 10
-4 and - 15
Step-by-step explanation:
5 + (-1) = 5 - 1 = 4
Which does lie between
Hope it helps you in your learning process
