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michaelsoupios
29.11.2019 •
Mathematics
Are triangles △abctriangle, a, b, c and △deftriangle, d, e, f similar? to answer, try to map △abctriangle, a, b, c onto △deftriangle, d, e, f using the interactive widget.
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Ответ:
From three condition the it is proved that Δ ABC and Δ DEF are similar Triangles .
Step-by-step explanation:
Given as :
To Proof : Triangle Δ ABC and Triangle Δ DEF are similar
There are three methods for two Triangles to be similar
A ) SAS i.e side angle side
B ) AA i.e angle angle
C ) SSS i.e side side side
Now,
A) If two triangle have a pair of equal corresponding angles and sides are proportional then triangle are similar
So, If in Δ ABC and Δ DEF
∠ B = ∠ E
and ,
= ![\dfrac{BC}{EF}](/tpl/images/0395/6572/dc56c.png)
Then Δ ABC
Δ DEF
I.e SAS similarity
B ) If two triangles have equal corresponding angles , then triangles are similar .
So, If in Δ ABC and Δ DEF
∠ B = ∠ E and ∠ A = ∠ D
Then Δ ABC
Δ DEF
I.e AA similarity
C ) If two triangles have three pairs of corresponding sides proportional then triangles are similar .
So, If in Δ ABC and Δ DEF
Then Δ ABC
Δ DEF
I.e SSS similarity
Hence From three condition the it is proved that Δ ABC and Δ DEF are similar Triangles . answer
Ответ:
x=24.666666666667
Step-by-step explanation:
We simplify the equation to the form, which is simple to understand
6x-8=140
We move all terms containing x to the left and all other terms to the right.
+6x=+140+8
We simplify left and right side of the equation.
+6x=+148
We move all terms containing x to the left and all other terms to the right.
+6x=+140+8