GRADE A Q&A
Solve for x. - (CORRECT ANSWER)b.
6
Find the geometric mean of the pair of numbers.
3 and 6 - (CORRECT ANSWER)c.
3 square root 2
Find the geometric mean of the pair of numbers.
320 and 5 - (CORRECT ANSWER)d.
40
Find the geometric mean of the pair of numbers. - (CORRECT ANSWER)c.
2 square root 2
The Pythagorean triple 5, 12, 13 represents the lengths of the sides of a right
triangle. Find the length of the altitude to the hypotenuse. - (CORRECT ANSWER)a.
60/13
Solve for a and b. - (CORRECT ANSWER)a
Find the geometric mean of the pair of numbers.
405 and 5 - (CORRECT ANSWER)c.
45
Find the geometric mean of the pair of numbers.
9 and 10 - (CORRECT ANSWER)d.
3 square root 10
Find the geometric mean of the pair of numbers.
4 and 8 - (CORRECT ANSWER)b.
4 square root 2
Find the geometric mean of the pair of numbers.
242 and 8 - (CORRECT ANSWER)c.
, 44
geometric mean - (CORRECT ANSWER)Geometric mean is a kind of average. To
find the geometric mean of a set of n numbers, multiply the numbers and then take
the nth root of the product.
similar - (CORRECT ANSWER)Figures with the same shape, but not necessarily the
same size, are similar.
similarity ratio - (CORRECT ANSWER)A similarity ratio is the ratio of the lengths of
corresponding sides.
The figures are similar. The area of one figure is given. Find the area of the other
figure to the nearest whole number.
The area of the smaller trapezoid is 181 m2. - (CORRECT ANSWER)c.
624 m2
The figures are similar. The ratio of the lengths of their corresponding sides is 40:15,
or 8:3. Find the ratio of their perimeters and the ratio of their areas. The figures are
not drawn to scale. - (CORRECT ANSWER)d.
8/3 and 64/9
The widths of two similar rectangles are 15 cm and 40 cm. What is the ratio of their
perimeters? Of their areas? - (CORRECT ANSWER)b.
3:8 and 9:64
The figures are similar. The area of one figure is given. Find the area of the other
figure to the nearest whole number.
The area of the larger triangle is 606 ft2. - (CORRECT ANSWER)a.
218 ft2
The figures are similar. The area of one figure is given. Find the area of the other
figure to the nearest whole number.
The area of the larger triangle is 1,589 ft2. - (CORRECT ANSWER)a.
1,217 ft2
The figures are similar. The area of one figure is given. Find the area of the other
figure to the nearest whole number.
The area of a regular octagon is 35 cm2. What is the area of a regular octagon with
sides 3 times as large? - (CORRECT ANSWER)a.
Solve for x. - (CORRECT ANSWER)b.
6
Find the geometric mean of the pair of numbers.
3 and 6 - (CORRECT ANSWER)c.
3 square root 2
Find the geometric mean of the pair of numbers.
320 and 5 - (CORRECT ANSWER)d.
40
Find the geometric mean of the pair of numbers. - (CORRECT ANSWER)c.
2 square root 2
The Pythagorean triple 5, 12, 13 represents the lengths of the sides of a right
triangle. Find the length of the altitude to the hypotenuse. - (CORRECT ANSWER)a.
60/13
Solve for a and b. - (CORRECT ANSWER)a
Find the geometric mean of the pair of numbers.
405 and 5 - (CORRECT ANSWER)c.
45
Find the geometric mean of the pair of numbers.
9 and 10 - (CORRECT ANSWER)d.
3 square root 10
Find the geometric mean of the pair of numbers.
4 and 8 - (CORRECT ANSWER)b.
4 square root 2
Find the geometric mean of the pair of numbers.
242 and 8 - (CORRECT ANSWER)c.
, 44
geometric mean - (CORRECT ANSWER)Geometric mean is a kind of average. To
find the geometric mean of a set of n numbers, multiply the numbers and then take
the nth root of the product.
similar - (CORRECT ANSWER)Figures with the same shape, but not necessarily the
same size, are similar.
similarity ratio - (CORRECT ANSWER)A similarity ratio is the ratio of the lengths of
corresponding sides.
The figures are similar. The area of one figure is given. Find the area of the other
figure to the nearest whole number.
The area of the smaller trapezoid is 181 m2. - (CORRECT ANSWER)c.
624 m2
The figures are similar. The ratio of the lengths of their corresponding sides is 40:15,
or 8:3. Find the ratio of their perimeters and the ratio of their areas. The figures are
not drawn to scale. - (CORRECT ANSWER)d.
8/3 and 64/9
The widths of two similar rectangles are 15 cm and 40 cm. What is the ratio of their
perimeters? Of their areas? - (CORRECT ANSWER)b.
3:8 and 9:64
The figures are similar. The area of one figure is given. Find the area of the other
figure to the nearest whole number.
The area of the larger triangle is 606 ft2. - (CORRECT ANSWER)a.
218 ft2
The figures are similar. The area of one figure is given. Find the area of the other
figure to the nearest whole number.
The area of the larger triangle is 1,589 ft2. - (CORRECT ANSWER)a.
1,217 ft2
The figures are similar. The area of one figure is given. Find the area of the other
figure to the nearest whole number.
The area of a regular octagon is 35 cm2. What is the area of a regular octagon with
sides 3 times as large? - (CORRECT ANSWER)a.
