8th Monthly Exam

8th Monthly Exam

By Monina Bornel

AA Similarity Theorem​

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SSS Similarity Theorem​

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SAS Similarity Theorem​

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What is the value of x and y? ​

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Similarity Theorem

Multiple Choice

What is the value of angle A?

• 40

• 140

• 70

• 35

Multiple Choice

If an angle of one triangle is congruent to an angle of another triangle and the sides including those angles are proportional, then the triangles are similar by?

• AA

• SAS

• SSS

Multiple Choice

If two angles of a triangle are congruent to corresponding two angles of another triangle, then the triangles are similar by?

• AA

• SAS

• SSS

Multiple Choice

If three pairs of corresponding sides of two triangles are proportional, then the two triangles are similar by?

• AA

• SAS

• SSS

Multiple Choice

What is the value of side AC?

• 8

• 16

• 24

• 32

Multiple Choice

What is the value of side side EF?

• 18

• 54

• 36

• 27

Variation​

​- is a relationship with regards to the change in the value of variable when the values of the related variables change.

​Direct Variation

-whenever a situation ​produces pairs of numbers in which their ratio constant.

Multiple Choice

Does the following table represent direct variation?

x - 1 2 3 4 5

y - 40 80 120 160 200

• YES

• NO

Multiple Choice

Does the following table represent direct variation?

x - 25 50 75 100

y- 12 6 4 3

• YES

• NO

Multiple Choice

y varies directly as x. If y = 28 when x=7, find y when x=12?

• 48

• 24

• 1/3

• 1/4

Multiple Choice

Translate the statement in mathematical equation. 

The perimeter (P) of a square varies directly as the length of the side (s). 

• s=kP

• s=k/P

• P=ks

• P=k/s

Multiple Choice

The weight of an object on Mars varies directly as its weight on Earth. A stone which weighs 5kg on Earth weighs 2kg on Mars. How much would a 70-kg person weigh on Mars?

• 56

• 14

• 140

• 28

Multiple Choice

The force of gravity on an object varies directly with the mass of the object. The force on a mass of 10 kg is 98 newtons. What is the mass of the object if the force acting is 245 newtons.

• 2401

• 20

• 25

• 30