Answer:
1) 
2) 
3) 
4) 
Step-by-step explanation:
1) Value of
since sin45° = 1/√2
Therefore 
2).Value of 
Since cos 30° = √3/2
Therefore 
3). Value of 
since tan 60° = √3
therefore 
4). Value of 
Since sin90°=1
Therefore 
Answer:
12ft3
Step-by-step explanation:
l x w x h=
3 x 4 x 1=
12
<h3>
Answer: 115</h3>
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Explanation:
Refer to the diagram below. I've drawn diagonal that slopes upward. This diagonal cuts the quadrilateral into two triangles: One is equilateral and the other is isosceles.
The equilateral triangle marked in blue has all three angles 60 degrees each.
Note that the 60 and y angles combined to form 130, so,
60+y = 130
y = 130-60
y = 70
Then focus on the isosceles triangle (angles y, w and w). These three interior angles must add to 180
y+w+w = 180
70+2w = 180
2w = 180-70
2w = 110
w = 110/2
w = 55
This adds onto its adjacent neighbor of 60 to get w+60 = 55+60 = 115 degrees which is the value of x.
Answer:
102.154
Step-by-step explanation:
11.154 78 = 89.154 13 =102.154
Answer:
£32
Step-by-step explanation:
12 + 4(5) = 32
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