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G=2.2 D=5G+15 5G = D = U=2.2 V=11 A=U+12 U/V= A = V W=3.1 L=2.3 P=2L+2W 2W = 2L = P = H=1.5 B=3.1 A=2.3 ½(A+B) = C=½(A+B)H A+B = C = i=16.2 b=2.1 i/4+b= m= i +b i/4= m = [ 4 ] 3 D=4 B=6.25 BD = C=√BD C = R=2.5 r2 = A=πr2 A = to 1 decimal place u=4.2 v=0.9 s= ½uv2 ½u = v2 = s = a=2.1 b=1.5 F= 3a+2b 2b = 3a = F = e=2.1 P=6+2(3e-1) 2(3e-1) = 3e-1 = 3e = P = |