Construct triangle EFG in which angle F = 60, angle G = 80 and perimeter is 13.5 cm.
Verify the perimeter of the triangle by adding the measurements of all sides after constructing it.
Also give the proper construction of triangle.
Don't give link pls

Answer:
Given :   Perimeter of triangle = 13.5 cm
And
$\angle$  F = 60$°$ and $\angle$ G = 80$°$

To construct required triangle there are steps of construction :

Step 1 : Draw PQ = 13.5 cm

Step 2 : Draw $\angle$ PQS an angle of  60$°$  , As :  Take any radius   and take center "  Q " draw a arc that intersect our line PQ at " T "  . Now with same radius and center is "  T  "  draw another arc that intersect our previous arc at "  U "  Now we join QU and extend it to S  , SO  $\angle$ PQS  = 60$°$

Step 3 : Draw $\angle$ QPR an angle of  80$°$ , As we know we can't construct 80$°$ angle with help of compass , So we construct that angle with the help of protractor . And take any radius   and take center "  P " draw a arc that intersect our line PQ at " X "  . and line PR at "  Y " 

Step 4 : With X and Y as centres, we will draw 2 arcs of convenient radius that intersect at W. Join PW and produce it. With T and U as centres, we will draw 2 arcs of convenient radius that intersect at V. Join QV and produce it, so that it intersects PW produced at E.

Step 5 : Draw  perpendicular bisector : LM is  perpendicular bisector of PE and NO is perpendicular bisector of QE .

Step 6 : Line LM intersect line PQ at G and line NO intersect line PQ at F .

Step 7 : Join EG and EF

Then  triangle EFG is our required triangle , Here $\angle$  F = 60$°$ and $\angle$ G = 80$°$  and EF +  FG  +  GE  =  13.5  cm                 (Ans)


                           
And we can measure all sides of triangle EF , FG  and GE and verify that sum of all these sides  is  =  13.5 cm