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Professor
Blake
DevinCalculate the area of rectangle of lengt 6cm and width 4cm
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What is the area of a right triangle 3cm by 4cm?
For it to be a right angle triangle the 3rd side must be 5cm
What is the dimensions of a rectangle has 20 cm area and 18 cm perimeter?
4cm x 5cm
What is a reasonable estimate for the area of a circle with radius 4cm?
area of a circle is pi x radius^2 so... pi x 4^2 = about 50 cm
A rectangle is 4cm longer than it is wide what are the demesions if the area is 8cm?
Area of a rectangle = length x width If length = L and width = W, then Area = L x W For this case, the length is 4 cm longer than the width. Therefore, L = W + 4cm Replace length in the area equation at the top with this new L value: Area = (W + 4cm) x W Area = W^2 + (4cm) x W And area is 8 cm^2 (I assume you meant to say 8cm^2 is the area) Then: 8cm^2 = W^2 +4W This is a quadratic equation (because of the w^2 value), if you solve for W using the quadratic formula (Google it), you get W = 1.464cm Therefore, the length L = W + 4cm = 1.464cm + 4cm = 5.464cm Dimensions are L = 5.464cm and W = 1.464cm
What is the area and perimeter rectangle 6 cm x 9 cm?
Area: 54 square cm Perimeter: 30 cm
