A rectangular pyramid was sliced parallel to its base. What is the shape of the cross section shown in the figure? A rectangular
pyramid. The cross section is a rectangle.
2 answers:
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Answer:
Estimated Answer=
Exact Answer=
Step-by-step explanation:
Steady speed of the object =10 and one tenth km/h =
Distance to be Covered=4 and nine tenths km = km
To the nearest integer,
Steady speed of the object = 10 km/hr
Distance=5km
=
The estimated answer is 1/2 hr.
Next, we determine the exact answer.
The exact time taken is
The centre of the rotation is A
The line of the reflection is Y
Vertex A of the triangle ABC when rotated by 90° counterclockwise about the origin,
Rule to be followed,
A(x, y) → P(-y, x)
Therefore, A(1, 1) → P(-1, 1)
Similarly, B(3, 2) → Q(-2, 3)
C(2, 5) → R(-5, 2)
Triangle given in second quadrant will be the triangle PQR.
If the point P of triangle PQR is reflected across a line y = x,
Rule to be followed,
P(x, y) → X(y, x)
P(-1, 1) → X(1, -1)
Similarly, Q(-2, 3) → Y(3, -2)
R(-5, 2) → Z(2, -5)
Therefore, triangle given in the fourth quadrant is triangle XYZ.
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