G9-QUIZ/ ACTIVITY

In a right triangle, if the length of the opposite side is 5 units and the length of the hypotenuse is 13 units, what is the sine of the angle opposite the 5-unit side?

• 5/13
• 13/5
• 5/12 I
• 12/5

If another angle of a Right Triangle is 35 degrees, what is the angle of the third angle?

• 90 degree
• 60 degree /
• 55 degree
• 35 degree

Total interior angle of a right triangle

• 360 degrees
• 180 degrees
• 90 degrees
• unknown

If the tangent of an angle in a right triangle is 3, what is the ratio of the length of the opposite side to the length of the adjacent side?

• 3
• 3/1
• 1/3
• 1

In a right triangle, if the cosine of an angle is 4/5​, what is the length of the adjacent side if the hypotenuse is 20 units?

• 16 units
• 15 units
• 20 units
• 12 units

True or False: According to the SOH CAH TOA mnemonic, the cosine of an angle is the ratio of the adjacent side to the hypotenuse.

• TRUE
• FALSE

True or False: The relationships defined by SOH CAH TOA are only applicable in right triangles and cannot be used in any other type of triangle.

• TRUE
• FALSE

What type of triangle is applicable for Law of Sine or Law of Cosine? Use all that is true.

• Right Triangle
• Any Triangle
• Obtuse triangle
• Oblique triangle

True or False: The tangent of an angle is calculated by dividing the length of the hypotenuse by the length of the opposite side.

• TRUE
• FALSE

In Soh Cah Toa, choose the SOH definition.

• Sine = opposite / hypotenuse
• Sine = adjacent/ hypotenuse
• Sine = hypotenuse/ opposite
• Sine = hypotenuse/ adjacent