Find the area of the triangle.
a. 48.45 in2
b. 20.4 in2
c. 40.8 in2
d. 81.6 in2

C

Step-by-step explanation:

To find the area of triangle we use the formula :

in²

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see explanation

step-by-step explanation:

since the sequence is geometric there is a common ratio r between consecutive terms, that is

r = 4 ÷ - 2 = - 2

r = - 8 ÷ 4 = - 2

r = 16 ÷ 8 = - 2

the next term - 13 must be incorrect as it should be - 32 for the sequence to be geometric.

the first 4 terms are therefore geometric with common ratio r = - 2

i believe the answer is letter c) 8

step-by-step explanation: