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➷ As the two lengths are a, this means it is an isosceles triangle.
The two unknown angles would be equal so we can calculate them:
(angles in a triangle equal 180 degrees)
(180 - 90) / 2 = 45
Now we can use the sine rule to calculate the length a
(6 / sin(90)) x sin(45) = a
a = 4.242640687
To one decimal place, your answer would be:
a = 4.2mm
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➶ Hope This Helps You!
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1. First would be 9-4+7=13
2. Second one is 4+6-2=8
Answer: (8,4)
Explanation:
First start by isolating the x in -2x+9y=11 to get x=4.5y-5.5.
Substitute the x in -5x+2y=-34 for 4.5y-5.5.
Solve for y, get 3.
Substitute the y in -2x+9y=11 for 3, solve for x and get 8.
(8,3)
Solve for m by simplifying both sides of the equation then isolating the variable.
m = -1 + v.
