All SSAT Middle Level Math Resources
Example Questions
Example Question #11 : Plane Geometry
The hypotenuse of a right triangle is 25 inches; it has one leg 15 inches long. Give its area in square feet.
The area of a right triangle is half the product of the lengths of its legs, so we need to use the Pythagorean Theorem to find the length of the other leg. Set :
The legs are 15 and 20 inches long. Divide both dimensions by 12 to convert from inches to feet:
feet
feet
Now find half their product:
square feet
Example Question #11 : How To Find The Area Of A Triangle
Note: Figure NOT drawn to scale.
What percent of the above figure is green?
The correct answer is not given among the other choices.
The area of the entire rectangle is the product of its length and width, or
.
The area of the right triangle is half the product of its legs, or
The area of the green region is therefore the difference of the two, or
.
The green region is therefore
of the rectangle.
Example Question #12 : How To Find The Area Of A Triangle
Note: Figure NOT drawn to scale.
Refer to the above diagram. Give the ratio of the area of the green region to that of the white region.
The correct answer is not given among the other choices.
The area of the entire rectangle is the product of its length and width, or
.
The area of the right triangle is half the product of its legs, or
The area of the green region is therefore the difference of the two, or
.
The ratio of the area of the green region to that of the white region is
That is, 11 to 4.
Example Question #3 : Area Of A Triangle
A triangle has a height of 9 inches and a base that is one third as long as the height. What is the area of the triangle, in square inches?
None of these
The area of a triangle is found by multiplying the base times the height, divided by 2.
Given that the height is 9 inches, and the base is one third of the height, the base will be 3 inches.
We now have both the base (3) and height (9) of the triangle. We can use the equation to solve for the area.
The fraction cannot be simplified.
Example Question #13 : How To Find The Area Of A Triangle
The hypotenuse of a right triangle is feet; it has one leg feet long. Give its area in square inches.
The area of a right triangle is half the product of the lengths of its legs, so we need to use the Pythagorean Theorem to find the length of the other leg. Set :
The legs have length and feet; multiply both dimensions by to convert to inches:
inches
inches.
Now find half the product:
Example Question #14 : How To Find The Area Of A Triangle
What is the area (in square feet) of a triangle with a base of feet and a height of feet?
The area of a triangle is found by multiplying the base times the height, divided by .
Example Question #15 : How To Find The Area Of A Triangle
What is the area of a triangle with a base of and a height of ?
The formula for the area of a triangle is .
Plug the given values into the formula to solve:
Example Question #15 : How To Find The Area Of A Triangle
Give the perimeter of the above triangle in feet.
The perimeter of the triangle - the sum of the lengths of its sides - is
inches.
Divide by 12 to convert to feet:
As a fraction, this is or feet,
Example Question #244 : Ssat Middle Level Quantitative (Math)
The above diagram shows Rectangle , with midpoint of .
The area of is 225. Evaluate
is the midpoint of , so has as its base ; its height is .
Its area is half their product, or
Set this equal to 225:
.
Example Question #17 : Plane Geometry
Find the area of a triangle with a height of 12in and a base that is half the height.
To find the area of a triangle, we will use the following formula:
where b is the base and h is the height of the triangle.
Now, we know the height of the triangle is 12in. We also know the base of the triangle is half of the height. Therefore, the base of the triangle is 6in.
So, we can substitute. We get
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