Question

construct a triangle ABC in which angle b is equal to 60 degree angle C is equal to 45 degree and a b + BC + CA sequel to 11 cm anybody give the answer for this

Answer 1

Hie 
Follow these steps ;
1. Draw a line segment PQ = 11 cm.
2. Make angle LPQ = angle B = 60` and angle MQP = angle C = 90`
3. Bisect  the angles LPQ and MQP. Let these bisectors intersect at A.
4. Draw perpendicular bisectors of line AP and AQ.
5.Let XY intersect PQ at B and RS intersect MQ at C.
6. Join AB and AC.
Thus , Triangle ABC is the required triangle. ☺
Also see the attached image for this construction . ☺☺☺

Bye !