 Hello students, let's work out the following problem. It says construct a triangle ABC in which BC is 7 centimeter angle A is 60 degrees Altitude AD is 5 centimeter write the steps of construction also So let's now move on to the solution. We have to construct a triangle in which BC is said 7 centimeter so we first write the steps of construction the first step is draw a line segment BC equal to 7 centimeter So this is the line segment BC which has length 7 centimeter now the second step is draw angle CBX equal to 60 degrees So you make an angle of 60 degrees CBX using the protractor the third step is draw the angle YBX Which is of 90 degrees So this is the angle YBX which is of 90 degrees That is an angle which is perpendicular to the line BX now the fourth step is draw the perpendicular bisector mn of line segment BC such that it intersects BY at a point O and let D be the point of bisection on BC So mn is the perpendicular bisector of the line segment BC and it intersects mn It intersects BY at the point O and D is the point of bisection of BC Now the fifth step is with OS center and OB as radius draw a circle So we have drawn a circle with center O and OB as radius Now the sixth step is from D Mark a point on mn which is at a distance 5 centimeter Since we need to have altitude as 5 centimeter So this is a point P on mn which is at a distance 5 centimeter from D so This distance is 5 centimeter Now the seventh step is draw a dash through P a dash is parallel to BC where a and a dash at the point of intersection with the circle So we have a we have drawn a line a a dash through P which is parallel to BC Now the last step is join a b a dash b a dash So we have joined a b ac a dash b and a dash c So the required triangles in which BC is 7 centimeter And the altitude is 5 centimeter and angle a is 60 degrees Or a triangle abc and triangle a dash bc Therefore required triangle triangles are triangle abc and Triangle a dash bc So these are the two required Triangles that this completes the question and the session Must write all the steps of constructions So bye for now. Take care. Have a good day