Question

please help me please help me

Answer 1

Answer:

c=90°

Step-by-step explanation:

angle b =90

angle b and angle ba form linear pair meaning they add up to 180

ba = 180-90

ba=90

as the are in the ratio of 2:3

let their lcm be x

2x+3x=90

5x=90

x=90/5

x=18

angle a =2x=2×18=36

angle b =3×x=3×18=54

as angle c and angle ba form a linear pair their addition will be 180

so

54+36+c=180

90+c=180

c=180-90

c=90

Hope it helps you thankyou