What you need: ruler, protractor, pencil and paper. Use these to construct a triangle when you know the length of 1 side and the 2 angles at each end of it. In this case use the length 8 cm, and the ...
If you’re doing something like setting posts on a slanted surface, you’ll likely need to measure the exact angle at which to cut their base so that they stand perpendicular with the ground. But you ...
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