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
Circle K has a radius of 8 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・面积与平面图形基础
A triangle has a base length of 48 centimeters and a height of 96 centimeters. What is the area, in square centimeters, of the triangle?
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周长・面积与平面图形进阶
The equation \( 58=2x+2y \) gives the perimeter of a rectangular garden that has length x, in feet, and width y, in feet. The width of the garden is 14 feet. What is the length, in feet, of the garden?
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周长・面积与平面图形进阶
The length of a side of square X is 9 centimeters. The area of rectangle Y is 32 square centimeters. What is the total area, in square centimeters, of square X and rectangle Y?
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周长・面积与平面图形挑战

The area of triangle ABC is 210 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 polygon with 22 sides has a perimeter of 131 inches. The length of one side is 5 inches. The other 21 sides have equal lengths. What is the length, in inches, of one of the 21 sides with equal lengths?
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周长・面积与平面图形进阶
A triangle has a base length of 80 centimeters and a height of 40 centimeters. What is the area, in square centimeters, of the triangle?
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周长・面积与平面图形进阶
A triangle has a base length of 80 centimeters and a height of 30 centimeters. What is the area, in square centimeters, of the triangle?
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周长・面积与平面图形进阶
A triangle has a base length of 60 centimeters and a height of 40 centimeters. What is the area, in square centimeters, of the triangle?
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周长・面积与平面图形挑战

What is the area, in square centimeters, of the rectangle shown?
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周长・面积与平面图形挑战
The length of a rectangle is 45 inches and the width is x inches. The perimeter is at most 150 inches. Which inequality represents this situation?
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周长・面积与平面图形基础
A rectangle has a length of 100 centimeters and a width of 400 centimeters. What is the area, in square centimeters, of the rectangle?
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