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A) 4

Step-by-step explanation:

Area of a triangle formula:

A = 0.5bh

Given:

b = 4

h = 2

Work:

A = 0.5bh

A = 0.5(4)(2)

A = 2(2)

A = 4

the answer is 10

Step-by-step explanation:

1. is 4 and 2. is 3

step-by-step explanation:

so if you look at the first one you see that 1 is to 4 and 2 is to 8 and so on, so you can see for every 1 there is a times 4 so if it were 3 then it would be 3*4 and it is 12

for number 2 it is 3 because 1 is to 3 and 2 is to 6 so for every 1 there is 3 so if it were 3 then there would be 3*3 = 9

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answer