Answer:
x = 7, y = 2
Explanation:
Two triangles are said to be congruent if all three sides and three angles of one triangle is equal to three sides and three angles of the other triangle.
From the question:
BD ≅ BD (reflexive property of equality)
Since BD is the angle bisector of ∠ABC, hence ∠ABD = ∠CBD
∠ABD = 2x + y, ∠CBD = 14 + y. Therefore:
2x + y = 14 + y
2x = 14 + y - y
2x = 14
x = 14 / 2
x = 7
Also, ∠BAD = ∠BCD = 90° (right angled triangle)
Since ∠BAD = ∠BCD, BD ≅ BD and ∠ABD = ∠CBD, therefore ΔABD is congruent to ΔCBD by angle-angle-side congruence theorem.
The angle-angle-side congruence theorem states that if two angles and one side of one triangle is equal to two angles and one side of another triangle the both triangles are congruent.
ΔABD is congruent to ΔCBD, therefore AD = CD
5x - y = x + 13y
13y + y = 5x - x
14y = 4x
14y = 4(7)
y = 4(7) / 14
y = 2
Answer:
<h3> The continents are the divisions of the earth space elaborated by man to better understand it. These are large landmasses that are separated by the oceans. Thus, according to the current division, there are six major continents: America, Europe, Africa, Asia, Oceania and Antarctica.
</h3>
<h3> Oceans are portions of water that occupy the major and largest depressions of the planet's relief. It is, therefore, an immense set of water mixed with other elements, mainly mineral salts, and that surrounds the areas formed by the emerged lands, which includes islands and continents. If we consider that oceans, unlike seas, are not surrounded by continents on at least three sides, we can say that there are only three oceans: the Pacific, the Atlantic, and the Indian, since the Arctic and Antarctic Glacial Oceans would be, indeed large seas (or a set of seas)</h3>
Explanation:
<h3>The earth can be organized into 4 oceans, 7 oceans and 7 continents hope that helps</h3>
D. rainfall causes the most erosion, especially on cliff sides and mountains
1. The Sahara Desert
2. Grassy plains of Kansas
3. Lake Michigan
4. An Arctic glacier
Explanation:
The insolation is not the same across the planet, and it varies from one place to another. The variations occur mainly because of two things, one being the latitude and the other being the the type of surface.
The places that are on lower latitudes get more direct sunlight, thus more concentrated, and they manage to absorb more heat. The places on higher latitudes get sunlight at very low angle, thus very dispersed, and they absorb much less heat.
The surfaces that are without cover, on land, tend to have higher insolation. The surfaces that are with cover, or are water bodies, ice bodies, have lower insolation.
