Question

construct a isosceles triangle whose perimeter is 12 cm and altitude is 4 cm

Answer 1

Draw a line XY of 12 cm. Draw its perpendicular bisector and cut 4 cm. Name the point P. Draw PX andPY. Draw the perpendicular bisector of PX and PY. Name the point where perpendicular bisectors of PX meet XY as Q and where PY meet as R. PQR is the required isosceles triangle.