Answer:
D=12
B:23
A:48
Explanation:
area of a rectangle= base *height or (length* width)
area of triangle = 1/2 base * height
area of rectangle=area of triangle
bh=1/2 bh
1/2h=bh/b
1/2h=h( of rectangle)
h=2(6)=12
second page : 28+18=46
46/2=23
third: the number is 48:
24/12=2 remainder 0