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3 years ago

9

What is the area of the triangle ?

2 answers:

sveticcg [70]3 years ago

8 0

Answer:

I atttached some screenshots of something that explinaed better than I can. Another way to do it is rations. If you cna determine each of the angles, then you can set the sides equal to each other and find the missing sides otherwose this is proballu the best way to do it.

nordsb [41]3 years ago

7 0

Step-by-step explanation:

He has the answer so just copy what he said

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Answer:

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3 years ago

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Step-by-step explanation:

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4 years ago

Read 2 more answers

The coordinates of the vertices of △PQR are P(1, 4) , Q(2, 2) , and R(−2, 1) . The coordinates of the vertices of △P′Q′R′ are P′

butalik [34]

<u>ANSWER </u>

The correct answer is option B

<u>EXPLANATION</u>

When we analyse carefully we can see that PQR is mapped on to P'Q'R' by the rule

$(x,y)\rightarrow (-x,y)$

$P(1,4)\rightarrow P'(-1,4)$

$Q(2,2)\rightarrow Q'(-2,2)$

$R(-2,1)\rightarrow R'(2,2)$

That is to say the <em>x-coordinates</em> are <em>negated</em>. Hence y-axis is the mirror line.

Since reflection is a rigid motion, the two triangles are congruent. That means the two triangles PQR and P'Q'R' are equal in all respect.

See graph in attachment.

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Answer:

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3 years ago