C.t<15
Step-by-step explanation:
If T-3<12
T<12+3=15
T<15
step-by-step explanation:
∆abc has the points a(1, 7), b(-2, 2), and c(4, 2) as its vertices. formed with the point d(1, 2) as its third vertex, then ∆abd is triangle.
10000
step-by-step explanation: divide by 2,