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Harlamova29_29 [7]
3 years ago
15

EASY BRAINLIEST PLEASE HELP!!

Mathematics
2 answers:
Alexxx [7]3 years ago
5 0

Answer:

Solution given:

Since it is a isosceles trapezoid so it diagonal will be congruent so

PR=QS

PT+RT=12cm

4.9+RT=12cm

RT=12-4.9

<u>RT</u><u>=</u><u>7</u><u>.</u><u>1</u><u>c</u><u>m</u>

PS=QR

<u>Q</u><u>R</u><u>=</u><u>9</u><u>c</u><u>m</u>

<u>m</u><u><</u><u>Q</u><u>P</u><u>R</u><u>=</u><u>4</u><u>4</u><u>°</u><u> </u><u>base</u><u> </u><u>angle</u><u> </u><u>of</u><u> </u><u>isosceles</u><u> </u><u>triangle</u>

<u>m</u><u><</u>PTQ=180°-44-44=92°[interior angle remaining of traingle]

m<STR=m<PTQ

<u>m</u><u><</u><u>S</u><u>T</u><u>R</u><u>=</u><u>9</u><u>2</u><u>°</u>

Oksi-84 [34.3K]3 years ago
4 0

Answer:

C. AB = 5.8 cm

Step-by-step explanation:

In trapezoid ABCD, EF is the Midsegment.

.:. EF = {(AB+CD)

.:: 9.2 = {(AB + 12.6)

:: 9.2 x 2 = AB + 12.6

.. 18.4 = AB + 12.6

.. 18.4-12.6 = AB

:: AB = 5.8 cm

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