Answer:
Step-by-step explanation:
<u><em>( 8 ).</em></u> m∠1 = m∠ 4 = m∠ 5 = <em>m∠6 = 52°</em>
<em><u>( 9 ).</u></em> m∠ 2 = m∠ 3 = <em>m∠ 7</em> = m∠ 8 = 180° - 52° <em>= 128°</em>
40 of the cats at the pet store are black, which is 25% of all cats. How many cats are there at the pet store
2 answers:
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Answer:
The the angle which the wire make with the ground is 1.280 radian .
Step-by-step explanation:
Given as :
The length of the wire attached to the top of building = OB = 70 foot
The distance of wire anchored from base of ground = OA = 20 feet
Let the angle made by wire en and ground = Ф
Now from , In Triangle AOB
Cos angle =
Or, Cos Ф =
or, Cos Ф =
Or, Cos Ф =
∴ Ф =
I.e Ф = 73.39°
Now in radian ,
∵ 180° = radian
∴ 73.39° = × 73.39°
= × 73.39° = 1.280 radian
Hence The the angle which the wire make with the ground is 1.280 radian . Answer
