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What is the area of a square with perimeter 76mm?
If the perimeter is 76, then the length of a side is (76/4) = 19 mm.The area is the square of the length of a side = (19)2 = 361 mm2
What is the area of a rectangle one side is 20mm and the other is 15mm?
300 mm2
What is the area of an 100mm circle?
5,000 i got it right on my homework two days ago!Formulae needed:area_circle = π x radius2radius = diameter ÷ 2circumference = 2 x π x radius ⇒ radius = circumference ÷ (2 x π)What do you mean by a 100 mm circle?Radius = 100 mmarea = π x radius2 = π x (100 mm)2= 10000π mm2≈ 31415.93 mm2Diameter = 100 mmradius = diameter ÷ 2 = 100 mm ÷ 2= 50 mmarea = π x radius2= π x (50 mm)2= 2500π mm2≈ 7853.98 mm2Circumference = 100 mmradius = circumference ÷ (2 x π) = 100 mm ÷ (2 x π)= 50/π mmarea = π x radius2= π x (50/π mm)2= 2500/π mm2≈ 795.77 mm2
What is the area of a rectangle with perimeter 126.6 mm and base length 40.4 mm?
Area = Length times width.We know the length, but not the width. We can solve for it using 2l + 2w = p.(l = length, w = width, p = perimeter)This gives us 2(40.4) + 2w = 126.6.Solving for w gives us w = 22.9A = lw, so area = (40.4)(22.9), which is 925.16 mm2.
What is the area of a triangle with a base of 14 cm and a height of 6 cm?
The area of a triangle is calculated using the formula A = 0.5 * base * height. Plugging in the given values, we get A = 0.5 * 14 cm * 6 cm = 42 square cm. Therefore, the area of the triangle is 42 square cm.
