Sin x = 4/5, cos x = 2/5 find the value of tan x
1 answer:
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Look at the attached graphic.
40° = ½ (ADC -140°)
40° = ½ ADC -70°
110° = ½ ADC
ADC = 220°
40° = ½ (ADC -140°)
40° = ½ ADC -70°
110° = ½ ADC
ADC = 220°
Answer: 128
Step-by-step explanation:
Let the width be W then the length will be 2W since it is twice as long as it width.
The formula for calculating the perimeter of a rectangle is given by :
P = 2 ( L + W )
48 = 2 ( W + 2W )
48 = 2(3W)
48 = 6W
Divide through by 6
Therefore:
W = 48/6
W = 8 inches
This means that the Length is 2 x 8 = 16 inches
Area = Length x breadth
Area = 16 x 8
Area = 128