What is weathering and features formed through weathering
1 answer:
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bearing in mind B is at (4,3) and D is at (-2,-4).
Answer:
x = 6.6; DE = 16.6
Step-by-step explanation:
Assume the diagram is like the figure below.
1. Calculate the value of x
In a right triangle, the altitude drawn from the right angle to the hypotenuse divides the triangle into two similar triangles.
Thus, ∆CDF ~ ∆FDE, and
2. Calculate the length of DE
DE = 2x + 3 = 2(6.6) + 3 = 13.2 + 3 = 16.2
<u>Question 2</u>
1) ,
(given)
2) (reflexive property)
3) and
are right angles (perpendicular lines form right angles)
4) and
are right triangles (a triangle with a right angle is a right triangle)
5) (HL)
Question 3
1) is a right angle,
,
(given)
2) is a right angle (perpendicular lines form right angles)
3) and
are right triangles (a triangle with a right triangle is a right angle)
4) (reflexive property)
5) (HL)
6) (CPCTC)
7) bisects
(if a segment splits an angle into two congruent parts, it is an angle bisector)