Can someone help me, I’m not good at math

Step-by-step explanation:

a = 7 cm

b = 10.4 cm

h = 6.7 cm

Area of trapezium = ?

we have the formula

Area of trapezium

= 1/2 * h ( a + b)

= 1 / 2 * 6.7 ( 7 + 10.4)

= 1/2 * 6.7 * 17.4

= 1/2 * 116.58

= 58.29 cm²

Hope it will help :)

10

step-by-step explanation:

d. bc = 12 and ef = 16

step-by-step explanation:

we are given that δabc : δdef such that .

also, it is given that

so, from the options, we need that .

a.

b.

c.  

d.

as, we can see that only option d gives the same ratio as i.e. .

hence, the possible lengths are bc = 12 and ef = 16.