Arnold K H Tan's answer to Tarah toh's Secondary 3 E Maths Singapore question.

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Arnold K H Tan
Arnold K H Tan's answer
2102 answers (A Helpful Person)
1st
Take a screenshot and zoom in if not clear enough. Follow the steps 1 to 8 to complete the diagram. You can actually calculate the value of x using similar triangles.. but that's maths.. nit Physics.