# Math Problem Solving: Grade 6 Part II

Consider an equilateral triangle below. Two of its sides are known to have long each (2x) and x = 15 cm.

What is the **circumference** of the triangle ?

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# Math Problem Solving Grade 6

Four isosceles triangle is the same, each side of its base is a square that has a length of 6 cm.

From the picture above, will set up a pyramid (square pyramid) by connecting each point of the triangle top. If after the formation of a high pyramid paramida note that these are 4 cm. What area of the entire surface (side) of the pyramid ?

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# Grade Six

Rini was assigned to take a journey from place A to place B on the condition that he should not follow the path of straight line from A to B. He was given 2 choices, first take the form of half-way great circle arc AB and the second through an arc-shaped path AC followed the path that shaped arc CB.

Given that the distance of a place A to place B is 10 km and the C right in the middle of the line AB. Determine how the difference in distance traveled by the first choice and the distance traveled by the second option !

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# Magic Square

Note the rectangularÂ 4 x 4 below!

If each row, column and diagonal on the square at the top should be filled by all the numbers 1, 2, 3 and 4 the value of K + N is ….

A. 3

B. 4

C. 5

E. 6

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# Math For Grade Six-Part II

**Problem 1**

A set of five different positive integers has an average (arithmetc mean) of 11. What is the largest possible number in this set ?

A. 45

B. 35

C. 35

D. 44

**Problem 1
**Three tenths of our planet, earth is covered with land and rest is covered with water. Ninety-seven percent of water is salt water and rest is fresh water. What is percentage of the earth is covered in fresh water ?

A. 20.1 %

B. 79.9 %

C. 32.1 %

D. 2.1 %

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