Step-by-step explanation:
A straight line adds up to 180°
m+3m=180°
4m=180°
m=45°
3m=45°
angle CBD=3(45)
=135°
Answer:
SAS Postulate
Two sides and the included angle of one triangle are congruent to two sides and the included angle in a second triangle, then the two triangles are congruent.
Answer:
150cm
Step-by-step explanation:
0.4*100-5=35
(35+40)*2=150