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Anvisha [2.4K]
4 years ago
5

Please help me I really need help

Mathematics
1 answer:
Murljashka [212]4 years ago
3 0

Answer:

x  = 77 degrees

Step-by-step explanation:

angle x  =  (76 + 78)/2 =   154/2 = 77 degrees

Use the Chord angle theorems

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A student draws a geometric shape where all of the sides are different lengths. which of the following geometric shapes could th
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A student draws a geometric shape where all of the sides are different lengths. which of the following geometric shapes could the student have drawn?

a. rhombus
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dusya [7]

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0 and 0.695

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3 years ago
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Plzz help <br><br>find value of following : 2sin75°.cos15°​
polet [3.4K]

Answer:

\frac{2+\sqrt{3} }{2}

Step-by-step explanation:

Using the product to sum formula

sinxcosy = \frac{1}{2} [ sin(x + y) + sin(x - y) ] , then

2sinxcosy = sin(x + y) + sin(x - y)

Given

2sin75°cos15° ← with x = 75 and y = 15 , then

= sin(75 + 15) + sin(75 - 15)

= sin90° + sin60°

= 1 + \frac{\sqrt{3} }{2}

= \frac{2+\sqrt{3} }{2}

6 0
3 years ago
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