How to Construct a Triangle ABC when given the Altitude and Base Angles

Triangle
ABC given the altitude and the two base angles.
Altitude = 45 mm, base angles ABC and
ACB 30° and 45° respectively.
Construction
Draw a horizontal lines DE and FG 45 mm apart.
Select a convenient point A on FG.
Draw angle HAF 30° and angle IAG 45°.
HA and IA intersect DE at B and C respectively to give the required triangle

[@user-se1he4ib8t]

Your efforts have not gone unnoticed sir, thank you so much

[@Fujui]

Thank you