Perpendicular lines

[copper crow]

Find the value of x

[crisp elk]

<ABC = 90°
x = 360°-90°-60° = 210°

[copper crow]

so is every perpendicular line 90 degrees?

[crisp elk]

yes

[copper crow]

ahh okay that makes sense

what about this one?

ive forgotten how to do these types of questions and its a struggle finding a guide etc

[crisp elk]

i) no, <a = 180°-68° = 112°
ii) <b = 180-72° = 108°

[copper crow]

ohhhh

so those types are both 180 then?

is that with basically any question like the perpendicular one i sent you earlier?

[crisp elk]

yes

[crisp elk]

yes

[copper crow]

sweet that makes like understanding them questions a piece of cake tysm