Answer:
The tower is approximately 381 feet high.
Step-by-step explanation:
Refer to the sketch attached. The height of the tower can be found in two parts:
- The part above the window, and
- The part under the window.
Each part can be seen as a leg of a right triangle. The other leg is the distance between the building and the tower and is 300-feet long. The angle opposite to the leg is given.
- The length of the upper part is
feet. - The length of the lower part is
.
The height of the tower is the sum of the two parts:
feet.
This is the concept of transformation, ΔHJK=ΔLMN, from the diagram:
∠H=∠L
∠K=∠N
∠M=∠J
In order to map ΔHJK to ΔLMN, we need to translate K to N and rotate about K until HK lies on the same line containing LN.
Same here I need this question to 126. A c d
Answer:
The dimension of A is 38.17
Step-by-step explanation:
Using the sine law
a/sin A = b/ sin B
For the question In ΔABC, sin A=82, sin B=58, and b=27. Find the length of A.
a/sin A = b/ sin B
Sin A = 82
b = 27
Sin B = 58
a/ 82 = 27/58
58a = 27 ×82= 2214
a = 2214/58 = 38.1724= 38.17
