For the answer to the question above,
b.Triangle TAN being an image of triangle TRI is smaller than triangle TRI, and so is a contraction.
while,
c.) TA/AN = TR/RI
3.3/6 = (3.3 + AR)/8
6(3.3 + AR) = 8 * 3.3 = 26.4
3.3 + AR = 26.4/6 = 4.4
AR = 4.4 - 3.3 = 1.1
AR = 1.1
d.) TA/TN = TR/TI
3.3/TN = (3.3 + 1.1)/(TN + 1.6)
3.3(TN + 1.6) = 4.4TN
3.3TN + 5.28 = 4.4TN
4.4TN - 3.3TN = 5.28
1.1TN = 5.28
TN = 5.28/1.1 = 4.8
TN = 4.8
I hope my answer helped you. Please ask one question at a time.
