Question

class 7 math triangles and its properties​

Answer 1

Answer:

angles(1+2+3+4+5)

Step-by-step explanation:

angles(1+2+3+4+5)= total angle inside it

then

(2n-4)×90°

total angle=5

then

(2(5)-4)×90

(10-4)+90

6×90°

540°