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Mathematics 19 Online
OpenStudy (anonymous):

Find the area of the triangle. A. 76 square feet B. 30 square feet C. 20 square feet D. 40 square feet

OpenStudy (anonymous):

OpenStudy (anonymous):

pretty sure it's c

OpenStudy (solomonzelman):

\[(Base \times height) \div 2\] find the red triangle, then find the whole triangle, and subtract the red from the whole.

OpenStudy (solomonzelman):

That's all.

OpenStudy (anonymous):

thank you

OpenStudy (solomonzelman):

Good, the rest is just calculations.

OpenStudy (anonymous):

Is it B?

OpenStudy (anonymous):

what i did was 5 times 8 (base times height) and divided by 2 and i got 20 d:

OpenStudy (anonymous):

hmmm

OpenStudy (solomonzelman):

that is not the blue triangle though, it's the entire shape.

OpenStudy (solomonzelman):

find the red triangle and subtract the red triangle from the entire shape/triangle See?

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