Answered

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1. What is the inverse of Sine?
A. Cosecant
C. Cotangent
B. Cosine
D. Secant
2. What is the trigonometric ratio for tangent?
A.
opposite side
C.
adjacent side
hypotenuse
В.
opposite side
D.
hypotenuse
hypotenuse
opposite side
3. If the measure of one acute angle in a right triangle is 55°,
what would be the measure of the other acute angle?
A. 15°
C. 35°
B. 25°
D. 45°
4. Using the figure, what is the trigonometric ratio for cos A?
9
40
A.
C.
40
41
9
40
B.
D.
41
9
5. If the measure of the given angle is 15º and its opposite
side measures 2 cm, what is the measure of its hypotenuse?
A. 7.25
C. 7.73
B. 7.37
D. 7.77
6. Find the perimeter of a square whose diagonal is 1872 cm long.
A. 36 cm
c. 36/2 cm
B. 72 cm
D. 144 cm
7. What is the area of the parallelogram given at the right?
A. 72 cm2
C. 216 cm2
B. 108 cm2
D. 108/3 cm2
8. Each side of a square is 30 cm. How long is its diagonal?
A. 1073 cm
c. 3073 cm
B. 3072 cm
D. 60 cm
9. What is the area of an equilateral triangle if each side measures 18 dm
long?
A. 81.13 dm2
c. 18/3 dm2
B. 81 dm2
D. 18 dm2
10. How long is the altitude of an equilateral triangle if each side measures
12 cm?
A. 6 cm
C. 12 cm
B. 613 cm
D. 1273 cm
18 cin
12 cm​

Sagot :

AlexanderMylesidn

ANSWER:

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1. What is the inverse of Sine?

  • [tex] \large{\boxed{ \bold{Arcsine}}}[/tex]

Explanation:

  • Arcsine is the inverse of sine because cosecant is the reciprocal of the sine and the inverse of the cotangent function is called inverse cotangent or arccot and inverse of cosine is arccos and secant is the reciprocal of the cosine. so the answer is Arcsine.

2. What is the trigonometric ratio for tangent?

  • [tex]\large{\boxed{\bold{Opposite \: \: side}}}[/tex]

Explanation:

  • Because, Opposite side is a Tangent of angle s means that the opposite side which is sin ratio to the adjacent side.

3. If the measure of one acute angle in a right triangle is 55°, what would be the measure of the other acute angle?

  • [tex]\large{\boxed{\bold{C. \: 35°}}}[/tex]

Explanation:

  • Because 35° degree, since the third angle is a right angle.

4. Using the figure, what is the trigonometric ratio for cos A?

  • [tex]\large{\boxed{\bold{9/40}}}[/tex]

Explanation:

  • Because 9/40 is a trigonometric ratio for cos A.

5. If the measure of the given angle is 15º and its opposite side measures 2 cm, what is the measure of its hypotenuse?

  • [tex]\large{\boxed{\bold{7.37}}}[/tex]

Explanation:

  • Because 7.37 is the measure of its hypotenuse.

6. Find the perimeter of a square whose diagonal is 1872 cm long?

  • [tex]\large{\boxed{\bold{82 \: cm}}}[/tex]

Explanation:

  • Because 82 cm is the perimeter of a square whose diagonal is 1872 cm long.

7. What is the area of the parallelogram given at the right?

  • [tex] \large{\boxed{\bold{A. \: 72 \: cm2 \: }}}[/tex]

Explanation:

  • Because, 72 cm2 is given to be right, then its neighboring angles, being supplementary to a right angle, are right as well.

8. Each side of a square is 30 cm. How long is its diagonal?

  • [tex]\large{\boxed{\bold{3073 \: \: cm}}}[/tex]

Explanation:

  • Because You can find the diagonal of a rectangle if you have the width and the height.

9. What is the area of an equilateral triangle if each side measures 18 dm long?

  • [tex]\large{\boxed{\bold{D. \: 18 \: dm2}}}[/tex]

Explanation:

  • Because each side measures 18 dm long.

10. How long is the altitude of an equilateral triangle if each side measures 12 cm?

  • [tex]\large{\boxed{\bold{C. \: 12 \: cm}}}[/tex]

Explanation:

  • Because 12 cm is an equilateral triangle if each side measures 12 cm.

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