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Serggg [28]
2 years ago
12

Help me one this one​

Mathematics
2 answers:
Tanya [424]2 years ago
8 0

<em><u>ANSWER:</u></em>

<u>A </u><u>=</u><u> </u><u>1</u><u>5</u><u>3</u><u>.</u><u>9</u><u>4</u><u>c</u><u>m</u><u>²</u>

<em><u>EXPLANATION:</u></em>

<em><u>a \:  = \pi \: r {}^{2}  = \pi. {7}^{2}  = 153.93804cm {}^{2}</u></em>

ipn [44]2 years ago
3 0
The answer is 153.86

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Answer:

B

Step-by-step explanation:

Reflection is a transformation that preserves lengths.

Triangle XYZ, with side lengths XY = 7 in, YZ = 5 in, XZ = 4 in, is reflected across the x-axis to result in △X'Y'Z'.

This means that corresponding sides have the same lengths:

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Find the perimeters of both triangles:

P_{XYZ}=XY+XZ+YZ=7+4+5=16\ in\\ \\P_{X'Y'Z'}=X'Y'+X'Z'+Y'Z'=7+4+5=16\ in

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