What is the area of triangle PQR? Round to the nearest tenth of a square unit.
2 answers:
ANSWER
111.3 square units.
EXPLANATION
The formula for calculating the area of a triangle is.
Let us the side of the triangle with side 12 units to be the base of the triangle.
Then the height of the triangle can be determined from the diagram using trigonometry.
We now plug in the values in to the formula to obtain,
See graph
111.3 square units.
EXPLANATION
The formula for calculating the area of a triangle is.
Let us the side of the triangle with side 12 units to be the base of the triangle.
Then the height of the triangle can be determined from the diagram using trigonometry.
We now plug in the values in to the formula to obtain,
See graph
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Answer:
Please see the attached image for solution.
Step-by-step explanation:
Cent: Rounding to the nearest cent or multiple of 0.01.
Dime: Rounding to the nearest 10 cents or multiple of 0.10.
Dollar: Rounding to the nearest dollar or multiples of 1.
For example, in question #21:
To round $12.3456 to the nearest cent: you must look at the hundredths place, and pay attention to the digit to its right. In this case, the digit at the hundredths place is 4, and to its right is 5. Therefore, you must round it up to 5, making it $12.3<u>5</u>.
To round $12.3456 to the nearest dime: you must look at the tenths place, and pay attention to the digit to its right. In this case, the digit at the tenths place is 3, and to its right is 4. Since 4 is less than 5, you must round 4 down to 0, making it into $12.<u>3</u>0.
To round $12.3456 to the nearest dollar: you must look at the ones place, and pay attention to the digit to its right. In this case, the digit at the ones place is 2, and to its right is 3. Since 3 is less than 5, you must round 3 down to 0, making it into $1<u>2</u>.00.
