Answer:
81
Step-by-step explanation:
uhm..... 9 times 9 is 81
have a nice day....?
The length of the midsegment of an isosceles trapezoid is the sum of the two bases, divided by 2. So this means -
(base 1+base2) / 2
(12+20) / 2
32/2
Length of midsegment = 16
Try it with some random number, like a=3.
Is "3+0 = 0+3 = 0" true? No.
If you were doing multiplication, then it would be true, but not with addition.
unlikely roughtly 40% have computers you cant make up for that other 10 percent
