Question

answer the (d) in the picture please ​

Answer 1

Step-by-step explanation:

According to angles sum property

Sum of all angles in a triangle = 180

d+3d+4d = 180

8d = 180

d = 180/8

d = 45/2 or 22.5

Hope this helps

Answer 2

Answer:

A = 67.5°

B = 90°

C = 22.5°

Step-by-step explanation:

I hope it helps you...

please mark it as BRAINLIST answer