Answer:
<em>A cross section is the intersection of a </em><em><u>solid</u></em><em> and a </em><em><u>plane.</u></em>
Step-by-step explanation:
<em>A cross section</em> is the geometric place formed when an 3-D object (<em>solid</em>) is cut straight.
Imagine the shape that you can see when you cut a piece of cheese with a knife. If the piece of cheese is a cube, the resultant shape, the cross section, will be a square.
Also, you can imagine the shape formed when you cut a right cylinder (the solid) with a plane parallel to the base. In this case, the cross section will be a circle.
Depending on the form of the solid and the angle of the plane, different cross sections may be obtained.
Answer:
Trapezoid
Step-by-step explanation:
Given quadrilateral has vertices at points A(-2,-1), B(3,13), C(15,5) and D(13,-11).
Find slopes of lines AD and BC:
Since the slopes are the same, lines AD and BC are parallel.
Find slopes of lines ABD and CD:
Since the slopes are different, lines AB and CD are not parallel.
This means quadrilateral ABCD is trapezoid (two opposite sides - parallel and two another opposite sides - not parallel)
Answer:
????? sus
Step-by-step explanation:
sussy baka????
among sus
I think it’s A Substitution
Answers:
B = 50
a = 10.9
c = 17.0
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Explanation:
This is a right triangle, so the acute angles are complementary, meaning they add to 90
B+40 = 90
B+40-40 = 90-40
B = 50
Also, because this is a right triangle, we can use trig ratios to compute the missing sides
tan(angle) = opposite/adjacent
tan(40) = a/13
a = 13*tan(40)
a = 10.908
a = 10.9
cos(angle) = adjacent/hypotenuse
cos(40) = 13/c
c*cos(40) = 13
c = 13/cos(40)
c = 17.0
note: make sure your calculator is in degree mode
