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hichkok12 [17]
3 years ago
12

Im so confused please help!

Mathematics
2 answers:
ryzh [129]3 years ago
6 0

Answer:

B. 18 units²

Step-by-step explanation:

You find the area of the triangle with the dotted lines first:

\frac{1}{2}*b*h

\frac{1}{2}*9*6=

27

The area of the triangle including the dotted lines is 27 units²

Now we need to find the area of the small dotted triangle using the solid line triangle as a hypotenuse.

\frac{1}{2}*b*h

\frac{1}{2}*3*6=

9

The area of the small dotted triangle is 9 units²

To find the area of the solid lined triangle, you need to subtract the area of the small dotted line triangle (9 units²) from the triangle with the dotted lines (27 units²) which is:

27-9=18

The solid lined triangle is 18 units²

sashaice [31]3 years ago
5 0

Answer:

18

Step-by-step explanation:

The area of a triangle is given by

A = 1/2 bh where b is the base and h is the height

The base length is 6 and the height is 6

A = 1/2 (6) * 6

A =18

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