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2 years ago

From point A and B on level ground, the angles of

Mathematics

1 answer:

gladu [14]2 years ago

4 0

Answer:

Step-by-step explanation:

Call T the top

call G the bottom

T G B is a right triangle

37 at B, 90 at G, thus 53 at BTG

TGA is a right triangle

25 at A, 90 at G, thus 65 at ATG

thus 122 at ABT

law of sines:

sin 25 / BT = sin 12/ 57

so BT = 156 meters (first answer)

now angle ABT = 180 - 12 - 25

= 143

sin 143 /AT = sin12/57

AT = 164 meters, second answer

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