5272道题目5525 条题源记录 · 相同内容已合并
周长・面积与平面图形进阶
A rectangular region of land is divided into 40 square lots of equal area \( R \) , in square units. The length of the region is 1.6 times the width of the region. If the width of the region is \( x\sqrt{R} \) units, what is the value of \( x \) ?
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周长・面积与平面图形挑战
In the figure shown, the measure of angle \( X \) is 52°. The length of \( XY \) is 24 units and the length of \( XZ \) is 17 units. What is the area, in square units, of triangle \( XYZ \)?
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周长・面积与平面图形挑战
Circle K has a radius of 2 millimeters (mm). Circle L has an area of 144π mm². What is the total area, in mm², of circles K and L?
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周长・面积与平面图形进阶
Triangle R has an area of 80 square centimeters (cm²). Square S has side lengths of 4 cm. What is the total area of triangle R and square S, in cm²?
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周长・面积与平面图形进阶
The area of triangle ABC is 60 square centimeters. What is the height h, in centimeters, of this triangle?
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周长・面积与平面图形进阶
A certain rectangular flag is produced in several different sizes. The flag is designed so that its length is always 1.46 times its width. Which equation gives the area A, in square feet, of this flag if it has a width of w feet?
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周长・面积与平面图形进阶
A rectangular banner has an area of 3,200 square inches, A copy of the banner is made in which the length and width of the original banner are each increased by 20%. What is the area of the copy, in square inches?
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周长・面积与平面图形进阶
A rectangular banner has an area of 3,500 square inches. A copy of the banner is made in which the length and width of the original banner are each increased by 40%. What is the area of the copy, in square inches?
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周长・面积与平面图形挑战
The triangle inequality theorem states that the sum of any two sides of a triangle must be greater than the length of the third side. If a triangle has side lengths of 5 and 9, which inequality represents the possible lengths, x, of the third side of the triangle?
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周长・面积与平面图形挑战
If the perimeter of an equilateral triangle with a height of 47 units is\( a\sqrt{3} \) units, what is the value of a?
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周长・面积与平面图形挑战
A rectangular region of land is divided into 40 square lots of equal area R, in square units. The length of the region is 1.6 times the width of the region. If the width of the region is \( x\sqrt{R} \) units, what is the value of x?
原库参考解析
周长・面积与平面图形挑战
The triangle inequality theorem states that the sum of any two sides of a triangle must be greater than the length of the third side. If a triangle has side lengths of 7 and 10, which inequality represents the possible lengths, x, of the third side of the triangle?
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