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Total 773 questions
What is the length in feet of the ramp?
- A. 13
- B. 17
- C. 20
- D. 24
- E. Not enough information is given.
Answer : C
Explanation: Let x = the length of the ramp. Use the Pythagorean Theorem to obtain the equation: x
= 122 + 162 = 144 + 256 = 400
What is the perimeter of the figure?
- A. 6a + b
- B. 5a + 5b
- C. 6a + 4b
- D. 3a + 5b
- E. 3a + 5b
Answer : C
Explanation:
To find the perimeter of the figure, find the sum of the lengths of its sides. 2a + a + b + 2a + b + a + 2b = 6a + 4b.
A rectangular dining room has a floor area of 322 square feet. If the length of the room is 23 feet, what is the perimeter?
- A. 28 feet
- B. 37 feet
- C. 45 feet
- D. 60 feet
- E. 74 feet
Answer : E
Explanation:
Let x = the width of the room;
23x = 322;
x = 322 ֳ· 23 = 14
23 + 14 + 23 + 14 = 74 feet.
What is the perimeter of the figure?
- A. 11x + 5y
- B. 10x + 5y
- C. 11x + 4y
- D. 9x גˆ’ y
- E. 8x + 3y
Answer : A
Explanation:
The perimeter of the figure is x + 2y + 3x גˆ’ y +2x +3y +5x + y = 11x +5y.
The measures of the angles of a triangle are in the ratio 3:2:1. What is the measure of the largest angle of the triangle?
- A. 65ֲ°
- B. 70ֲ°
- C. 72ֲ°
- D. 80ֲ°
- E. 90ֲ°
Answer : E
Explanation:
Let x, 2x, and 3x be the measures of the three angles. Then:
x + 2x +3x = 180
6x = 180
x = 180 ֳ· 6 = 30
3x = 3(30) = 90
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