Question

What is the measure of angle HLF?

Answer 1

@apoorvk I know you use tangent, right? but how do you set up the answer?

Answer 2

well, if you remember trigonometry,
\(\Large\tan\theta = \frac{perpendicular}{base}\)

So here,

\(\Large\tan C = \frac{AB}{BC}\)

Can you use this?

Answer 3

is that right?

Answer 4

Umm, this time you actually blooped. :|
Now worries, here's how it's done

\(\frac{AB}{BC} = \tan 45^o\)

Now,we cross multiply, and send that BC over to RHS:

\(or,~AB = BC \times \tan45^o\)

Now, BC=12. and tan45=1
so find AB!

Answer 5

Www-wait a sec - what's 'angle HLF'????

Answer 6

45 degres i attached the pic^^

Answer 7

am i right ? @apoorvk

Answer 8

But the figure you attached is named as ABC!

Answer 9

anyways, if angle BAC has been asked, then it is ofcourse 45 degrees by sing the angles sum property of a triangle.

Answer 10

(and also, could you please post these maths questions in the Mathematics forum? Thanks :) )

Answer 11

OMG! sorry this is the question -.-What is the height, in feet, of the portion AB of the lamp post?

Answer 12

yeah, so I showed you how to find AB above, could you go through that comment again please? :)

Answer 13

so im right :))))

Answer 14

@apoorvk

Answer 15

No!!!
it's 12*tan45, not 12/tan45

(although numerically they are both same since tan45=1, but you'll get into trouble if the angle is something other than 45 degrees)

Answer 16

gotha ya :)

Answer 17

Yo!

Answer 18

and please post in 'maths' section thanks :)

Answer 19

how do i do tht