ada yg tau nomer 7 gimana?

[tex]\displaystyle [\text{ABCD}]=at\\48=at\\\\\left[\text{ABE}\right]=\frac12at\\\left[\text{ABE}\right]=\frac12\cdot48\\\left[\text{ABE}\right]=24\\\\\left[\text{AED}\right]+\left[\text{BEC}\right]=\left[\text{ABCD}\right]-\left[\text{ABE}\right]\\\left[\text{AED}\right]+\left[\text{BEC}\right]=48-24\\\boxed{\boxed{\left[\text{AED}\right]+\left[\text{BEC}\right]=24}}[/tex]

L ABCD = 48

L ABE + L BCE + L ADE = 48

L ABE = L BCE + L ADE = 1/2 × L ABCD

L BCE + L ADE = 1/2 × 48
L BCE + L ADE = 24

So the breadth [BCE + ADE] is equal to 24