In the diagram, PQR is a equilateral triangle. Given that QT=TR, find the length, in cm, of PT, correct to 2 decimal places. Help, please! :(((

asked Aug 1, 2018 130k views

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In the diagram, PQR is a equilateral triangle. Given that QT=TR, find the length, in cm, of PT, correct to 2 decimal places.

Help, please! :(((

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2 votes

the length of RT=12÷2=6cm

the length of PT
6^2+PT^2=12^2
PT=√108
PT=10.392 decimal places

Guy Thomas answered Aug 5, 2018

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