CAN ANYONE SOVE THIS EASY INDIAN MATHS QUESTION...The angle of elevation of a cloud from a point 60m above a lake is 30" and the angle of depression of the reflection of the cloud in the lake is 60° find the height of the cloud from the surface of the lake.
2 answers:
Answer:
Step-by-step explanation:
The described points form two right triangles which share same horizontal leg a.
The bottom triangle has 60 m vertical length and 60° opposite angle.
The triangle on the top has unknown (x) vertical length and 30° opposite angle.
We are looking for the distance x + 60 m
<u>On the top triangle we have:</u>
tan 30° = x/a ⇒ a = tan 30° / x <u>On the bottom triangle we have:</u>
tan 60° = 60/a ⇒ a = tan 60° / 60 <u>Comparing we get:</u>
tan 30° / x = tan 60° / 60 x = 60 tan 30° / tan 60° x = 20 m <u>So the distance is:</u>
Answer:
the angle of elevation of a cloud from a point 60m above a lake is 30 and the angle of depression of the reflection of the cloud in the lake is 60 - Mathematics ... the reflection of the cloud in the lake is 60* find the height of the cloud from the surface of the lake
Step-by-step explanation:
Hope this helps
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Answer:
hello : 256 words
Step-by-step explanation:
2 minutes and 30 = (2×60)+30=150seconds
4 minutes = 4 ×60 = 240 seconds
150seconds →160 words
240 seconds → x ?
x = (160×240) / 150 = 38400/150= 256 words
The answer for your question is 686
Answer:
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Step-by-step explanation:
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Answer: center (1;0), radius = 2
Step-by-step explanation:
x² – 2x + 5+ y² = 8
x² – 2x + 5+ y² = x² – 2x + 1 + 4 + y² = (х-1)² +4 + y²
(х-1)² +4 + y² = 8
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center (1;0), radius = 2