How to construct a triangle given the base length, altitude and the vertical angle

Draw line AB=100mm the base length
Bisect line AB
At point A, draw the vertical angle{60} to create line CD
At point A along line CD erect a perpendicular that intersects with the bisector of AB at point O.
At point O and using OA or OB as the radius, draw a circle the inscribes the required triangle
With points A and B being the centres draw arcs whose radius = altitude=50mm
Draw a line that is tangential to the arcs
At the points where the line cuts the circumference of the circle are E and F
Join point A to point F and point B to point F
Triangle ABF is the required triangle

[@user-se1he4ib8t]

This helpful sir. Your efforts have not gone unnoticed.

[@TECHNICALDRAWINGMASTERCL-yv8dr]

Am preparing more videos for you, always wait to be notified just incase I upload a new video

[@ngilakambwela7412]

Construct angle 90 efg 90degrees 1:34

[@TECHNICALDRAWINGMASTERCL-yv8dr]

Okay

[@raizomedia2215]

The more i watch the more confused i became.... Consider adding the angles when explaining please

[@TECHNICALDRAWINGMASTERCL-yv8dr]

Ok please I will sort it out

[@user-vm5jn3jo3m]

Not understanding how to draw perpendicular

[@TECHNICALDRAWINGMASTERCL-yv8dr]

Please rewatch the video, it's well explained