The area of a rhombus is 1/2 times the lengths of the diagonals
A = (1/2)(AC)(BD)
Since the diagonals bisect each other, and ed = 8, BD must be 16. Substituting in this for BD and the given area (168) we get the following:
168 = (1/2)(AC)16
168 = 8(AC)
21 = AC
Answer:
a)7 cakes=£5.6
b)£2=4 drinks
c)£7.7
Step-by-step explanation:
a)5cakes=£4
1 cake=4/5=£0.8
7 cakes=£5.6
b)1 cake=3/6=£0.5
£2=4 drinks
c)(0.8×4)+(0.5×7)=£7.7
Answer:
Step-by-step explanation:
3:5
