Question

find unknown angle? its argent ​

Answer 1

Answer:

in triangle ADC

y = 90 ( because it's perpendicular to base )

now

25⁰+ Y + X = 180 ( angle sum property )

25⁰+ 90⁰ + X = 180⁰

X = 180⁰- 115⁰

X = 65⁰

now let's take the whole triangle.. ABD

angle ABD = 180⁰-120⁰

= 60⁰

now angle ADB = 90⁰ ( perpendicular to base or 180⁰-90⁰)

angle Z

60⁰+90⁰+Z = 180⁰

150⁰ + z = 180⁰

z = 180⁰-150⁰

= 30⁰

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