Answer:
Step-by-step explanation:
To solve for the interior angles for a polygon,
subtract 2 from the number of sides then multiply with 180
i.e, (n-2)180
e.g, in the case of a triangle, (3-2)180 = 1*180 = 180
As for square, (4-2)180 = 2*180 = 360
Hope u understand.
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Answer:
- 39
Step-by-step explanation:
Step 1:
2x + 6 = - 72 Equation
Step 2:
2x = - 78 Subtract 6 on both sides
Step 3:
x = - 78 ÷ 2 Divide
Answer:
x = - 39
Hope This Helps :)
Answer:
x = 90° or π/2 rad
Step-by-step explanation:
4+ 2 sin x=14-8 sin x
2 sin x + 8 sin x = 14 - 4
10 sin x = 10
sin x = 1
Using a calculator
x = sin
1
x = 90° or π/2 rad
Alternate angles are equal so x-5=60
x=65
The answer is x= +- 2 square root of 2 + 3
