5. One of the two parallel sides of a trapezium is half of the length of the other. If the height of the trapezium is 7cm and its area is 52.5cm^2. The length of the parallel sides are

5 and 10 cm

Step-by-step explanation:

The area (A) of a trapezium is calculated as

A = h (a + b)

where h is the height and a, b the parallel bases

Here A = 52.5, h = 7 and b = 0.5a ( half the length of the other ), thus

× 7 × (a + 0.5a) = 52.5, that is

3.5 × 1.5a = 52.5

5.25a = 52.5 ( divide both sides by 5.25 )

a = 10

Thus

The parallel sides are 10 cm and 5 cm

£56

step-by-step explanation:

u divide 24 by 3 and u get 8 so if u do 8 time 7 or 8+8+8+8+8+8+8 u get 56 and 56 divided by 7 is 8.

1. 8

2. 9

3. 20

4. 3

5. 17

6. 2.2

7. 11.25

8. 1

9. 14

10. 2

step-by-step explanation:

thats the first half