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jorozco3209
05.12.2020 •
Mathematics
3. Reflect right triangle ABC across line BC. Classify
triangle ACA' according to its side lengths. Explain how
you know.
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Ответ:
Triangle ACA' has two equal sides, based on the side lengths, triangle ACA' can be classified as: an isosceles triangle.
Recall:
An isosceles triangle has two equal side lengths which lie opposite each other.Given that triangle ABC is a right triangle, if we reflect it across line BC, we will have mirror figure of right triangle ABC, forming triangle ACA'.
That is, two right triangles of ABC, which are reflections of each other, will form triangle ACA'. (See image attached).
Thus, this means that:
A'B = AB (congruent sides)Therefore,
A'A = 2(AB) or 2(A'B)Also, CA = C'A (congruent sides)
This means that, triangle ACA' has two equal sides that are opposite to each other.
Therefore, based on the side lengths, triangle ACA' can be classified as: an isosceles triangle.
Learn more here:
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Ответ:
Isosceles triangle
Step-by-step explanation:
Given
Triangle ABC
Required
Reflect across BC and name the triangle according to length of its side
When the triangle is reflected across line BC, the new triangle is ACA (see new attachment)
And the sides of this ACA are:
AC, CA and AA
Such that
AC = CA
and
From the description above, we have two sides (AC and CA) of the triangle to be equal.
By classification of sides, when two sides of a triangle are equal; such triangle is an isosceles triangle
Ответ:
help
plz
Step-by-step explanation: