PLZ HELP ASAP CROSS SECTIONS OF 3D FIGURES LAST ONE

Mathematics

2 answers:

Alik [6]3 years ago

7 0

The answer would be a rectangle. Same as the previous question, when you split up a cylinder, then it will give you two rectangles due to its vertical sides. The other choices is impossible because when you say it will result into a square, the arc of the circle must be the same as the height of the cylinder to result into a square. but it has different measurements so it is a rectangle, one side is bigger than the other.

Elanso [62]3 years ago

6 0

Correct Answer is

Rectangle.

An isosceles triangle can be obtained from cross section of a cone.

Since the height of the cylinder is much larger than the diameter, the resulting cross sectional area would be a rectangle.

For a square, all four sides must be equal. So a cylinder with equal diameter and height will result in a square.

You might be interested in

What is the side length of the largest square that can fit into a circle with a radius of 5 units?

Mariana [72]

So 1st consider that it's a square! That's very important. So for a square, all 4 sides are equal.

And now considering that the given information is the diameter. So any angle made at the circle extended from the 2 points of diameter gives an angle of 90°

Now consider one triangle. So we already know that 2 sides of the triangle are equal (because they are 2 sides of a square) , has a side of 10 (diameter) and and angle of 90°. So remaining 2 angles are 45°

Now solve it by applying

$\sin(45) \: \: \: \: = x \div 10 \\ (1 \div \sqrt{2} ) = (x \div 10) \\ 10 \div \sqrt{2} \: = x$