Question

Bantu no 3 & 4 dengan cara!

Answer 1

3a) p = AB = (DC x EA + EF x DA) / (DA+EA)
p = ( 6x4 +24x5) /(4+5)
p = (24+120) /(9)
p = 144/9
p = 16

b)EF = (DCxAE + ABxDE) / (AE+DE)
15 = (5p+ 45x3) /(p+3)
15(p+3) = 5p +135
15p + 45 = 5p + 135
15p - 5p = 135 - 45
10 p = 90
p = 9

4a) AE/DE = AC/BC
8/6 = (8+b)/9
6(8+b) = 8x9
48 + 6b = 72
6b = 72 - 48 = 24
b = 4
.
a x b = 8 x 2
a x 4 = 16
a = 4

b) a/6 = 8/4
a = 6(8)/4
a = 12

6/9 = 10/b
6b = 9 x 10
b = 90/6
b = 15
..