Geometry and Algebra Concepts

This video tutorial covers a range of mathematical topics for 7th-grade students, including solving simple and advanced algebraic expressions, combining like terms, and working with equations. It also delves into geometry problems, angle calculations, and the concepts of proportions and similarity. The tutorial concludes with a section on statistics and percentages, providing a comprehensive review of key math skills aligned with the Merdeka curriculum.

What is the result of adding 2a and 3a?

• 6a

• 5a

• 3a

• 2a

How do you simplify the expression 2x + 3y - 4x + 8y?

• 2x + 5y

• -2x + 5y

• 2x + 11y

• -2x + 11y

What is the simplified form of 3(b + 4)?

• 3b + 12

• 3b + 4

• 3b + 7

• 3b + 8

If a square has a side length of 2x + 4 cm and an area of 144 cm², what is the value of x?

• 8

• 4

• 10

• 6

What is the value of angle S if angle R is 50 degrees and they are complementary?

• 60 degrees

• 90 degrees

• 50 degrees

• 40 degrees

If angle U is 110 degrees, what is the value of angle T if they are supplementary?

• 70 degrees

• 80 degrees

• 90 degrees

• 60 degrees

In a triangle, if angle A is 47 degrees, what is angle C if it is vertically opposite to angle A?

• 180 degrees

• 90 degrees

• 133 degrees

• 47 degrees

What is the length of PQ if triangles RST and RPQ are similar and RS = 6, RP = 10, and RT = 9?

• 10 cm

• 8 cm

• 6 cm

• 12 cm

If 20% of a group of 50 workers are farmers, how many farmers are there?

• 10

• 25

• 15

• 20

If the total percentage of workers is 100% and the known percentages add up to 96%, what percentage are fishermen?

• 10%

• 4%

• 8%

• 6%