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a) Draw triangle \( A B C \). The measure of \( \angle B \) is \( 30^{\circ} \). The length of side \( A B \) is 5 cm . The length of side \( B C \) is 3 cm .

Ask by Schmidt Bradley. in Canada
Mar 11,2025

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To draw triangle \( ABC \): 1. Draw side \( AB \) that is 5 cm long. 2. At point \( B \), create a \( 30^{\circ} \) angle. 3. From point \( B \), measure 3 cm along the \( 30^{\circ} \) angle to locate point \( C \). 4. Connect points \( A \) and \( C \) to complete the triangle. Triangle \( ABC \) has sides \( AB = 5 \) cm, \( BC = 3 \) cm, and angle \( B = 30^{\circ} \).

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Bonus Knowledge

To construct triangle \( ABC \) with the given dimensions, start by drawing side \( AB \), which is 5 cm long. From point \( B \), use a protractor to measure and draw an angle of \( 30^{\circ} \) toward the direction you want to place point \( C \). Then, use a ruler to measure a length of 3 cm from point \( B \) along this angle to find point \( C \). Finally, complete the triangle by connecting point \( A \) to point \( C \). Triangles like this one have been central to various scientific advancements throughout history. The ancient Greeks, particularly Euclid, laid the foundation of geometry with their explorations of triangle properties, teaching us the relationships between sides and angles, which are still used in fields like engineering, architecture, and physics today. The Pythagorean theorem, for example, was developed based on the properties of right triangles and remains a key principle in numerous practical applications. If you're not careful, you might end up with a misrepresented triangle! A common mistake is miscalculating angles or distances. Always double-check your angle measurements and lengths before drawing the final sides. Using a compass for constructing equal lengths can help ensure precision. When measuring angles, ensure the protractor aligns perfectly with the baseline to avoid skewed results.

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