The diagram shows a cone and its axis of rotation. If a plane passes through the axis of rotation, which type of cross section w
ill be formed?
1. a circle
2. an isosceles triangle
3. a parabola
4. an oval
1. a circle
2. an isosceles triangle
3. a parabola
4. an oval
2 answers:
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Congruent triangles are exactly the same, meaning they have the same side length, and thus same angles. Everything is exactly the same, as easy as it gets :)
So, you can compare the two pictures to get the informations you need:
, since it is a right angle
, as we can see on the right by comparison
. In fact, the angles of a triangle sum to
, so we have
. So,
yd, as we can see on the left by comparison.
Finally, we can compute using the Pythagorean theorem:
Answer:
The surface area of the triangular prism is approximately 401.582 square feet.
Step-by-step explanation:
The figure represents a triangular prism, the procedure for calculating the surface area of the entire figure consists in adding the areas of each face (3 rectangles and 2 triangles):
The surface area of the triangular prism is approximately 401.582 square feet.