The measure of the other two sides are 10 and 10√3
Using Trigonometric concept :
The measure of AB can be calculated thus :
- sine = opposite / Hypotenus
Sin30 = AB / 20
20 × 0.5 = AB
AB = 10 inches
Using Pythagoras rule:
BC = √20² - 10²
BC = √400 - 100
BC = √300
BC = √3 × √100
BC = 10√3