Find the area of the figure. Assume the figure is made up of parallelograms and triangles.
A.
441 cm²
B.
343 cm²
C.
539 cm²
D.
686 cm²
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OpenStudy (hyperlunatic):
Didn't you already answer the question?
OpenStudy (anonymous):
OpenStudy (anonymous):
no
OpenStudy (anonymous):
@Nnesha
Nnesha (nnesha):
what's the formula to find area of right triangle ? do you know ?
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OpenStudy (anonymous):
no
Nnesha (nnesha):
it's okay
alright formula to find area of right triangle is \[\large\rm A=\frac{1}{2}b*h\]
and to find area of parallelogram \[\large\rm A= b*h\]
Nnesha (nnesha):
base = b
height = h
Nnesha (nnesha):
|dw:1445526348534:dw|
find the area of both figrue
and then to get the final result add area of right triangle + area of parallelogram
OpenStudy (anonymous):
14*21=294 28*14=392 294+392=686
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Nnesha (nnesha):
hmm area of right triangle is base times height divided by 2
bec of the fact parallelograms can be divided into two right triangle
Nnesha (nnesha):
14 times 21 =294 now divide it by 2
OpenStudy (anonymous):
147
Nnesha (nnesha):
right now add them that would be the final answer
OpenStudy (anonymous):
147+?
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Nnesha (nnesha):
`area of right triangle + area of parallelograms `
OpenStudy (anonymous):
343
Nnesha (nnesha):
hmm no what's the area of parallelograms ?
Nnesha (nnesha):
it's not 343 ...
Nnesha (nnesha):
\(\color{blue}{\text{Originally Posted by}}\) @pinkydots
14*21=294 28*14=392 294+392=686
\(\color{blue}{\text{End of Quote}}\)
392 is correct for the rea of parallelograms
add it with 147