Find the difference between the areas of these 2 shapes to 2 decimal places. Rectangle (width 4cm length 2.5cm) Circle (diameter 2.4) use pi = 3.14
Rectangle:
Area = width x length
hence area = 4cm x 2.5cm
area = 10cm2
Circle:
Area = pi x radius2
Radius = 1/2 x diameter
Radius = 1.2cm
Area = 1.22 x 3.14
Area = 1.44 x 3.14
Area = 4.5216
Difference between areas =10cm2 - 4.5216cm2
= 5.4784cm2
2.dp = 5.48cm2
LH
Related Maths GCSE answers
All answers ▸How would I find the formula for the nth term of a sequence such as 3, 7, 11, 15, 19?
How do you rationalise surds?
Given a circle with the equation y^2 + x^2 = 10, with a tangent that intersects at point P, where x=1, find the coordinates for the point at which the tangent meets the x axis (Q).
If angle x = 63 degrees, work out the remaining angle of this right-angled triangle