Question

Construct ∆ ABC if AB = 8cm, m ∠ ABC = 105° and m ∠ BCA =40°. (Recall angle

sum property of a triangle).Write steps of construction also.​

Answer 1

Answer:

PQR +QRP+RPQ=180

105+ 40+ RPQ=180

145+ RPQ=180

RPQ= 180-145

RPQ= 35

LET DRAW A LINE PQ = 5CM

DRAW ANGLE P = 35°

DRAW ANGLE Q = 105°

FINALLY THEY INTERSECT EACH OTHER AT POINT R= 40°