Answer:
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Step-by-step explanation:
- When two straight lines intersect each other, then the pairs of angles so formed without any common arm are called vertically opposite angles.
- Vertically opposite angles are equal to each other.
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So,
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Removing the brackets,
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Therefore,
X=45° bc 7 is a right triangle, which means the 2 x’s would have to equal 90°. So divide 90 by 2 and you get 45° for each x angle
Answer:
sine=opposite/hypotenuse
cosine=adjacent/hypotenuse
tangent=opposite/adjacent
a: 42
b: 135 km/h
Step-by-step explanation:
For part A, you are given the adjacent and opposite side lengths so you need to use the tangent formula. On the calculator, it is tan^-1 (90/100)
For part B, I used the pythagorean theorem and did 100^2+90^2= 18100 and then took the square root of that to get 135.
