If the tan of angle x is 22/5 and the triangle was dilated to be two times as big as the original, what would be the value of the tan of x for the dilated triangle?

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01-08-2018
Mathematics

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If the tan of angle x is 22/5 and the triangle was dilated to be two times as big as the original, what would be the value of the tan of x for the dilated triangle?

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mbh292 mbh292 · Answer 1 · 2018-08-01T21:56:43+02:00

Trigonometric values (sin, cos, tan etc.), represents the ratio between two sides.

In this case the triangle is dilated, which means the size will change but the shape will stay proportional.

Because the sides grew proportional their ratio stays the same; so, the tan in the second triangle is 22/5 too.

Moreover, because the sides grew/shrunk proportional, the angles stay the same.

Because same angles have the same trigonometric values, tan(x) in second triangle becomes 22/5.