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Question 1 of 4
Find the area of the non-right angled triangle below.
Round your answer to the nearest cm2cm2
Incorrect
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Progress: 0%
0:00
First, label the triangle.
Next, rewrite the Area formula based on the given values of the triangle.
The formula needs two sides and one angle in between them (included angle).
Finally, substitute the values to the revised formula and solve for the area.
b=35b=35cm
c=22c=22cm
A=41°A=41°
A△A△ |
== |
1212bbccsinsinAA |
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== |
12(12(3535)()(2222)sin41°)sin41° |
Substitute the values |
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== |
12(770)sin41°12(770)sin41° |
Simplify |
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== |
385×sin41°385×sin41° |
Evaluate sinsin 4141 on your calculator |
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== |
252.5827252.5827 |
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== |
253cm2253cm2 |
Rounded off to the nearest cm2cm2 |
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Question 2 of 4
Find the area of the non-right angled triangle below.
Round your answer to one decimal place
Incorrect
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Progress: 0%
0:00
First, label the triangle.
Next, rewrite the Area formula based on the given values of the triangle.
The formula needs two sides and one angle in between them (included angle).
Finally, substitute the values to the revised formula and solve for the area.
a=33a=33cm
c=24c=24cm
B=110°B=110°
AA |
== |
1212aaccsinsinBB |
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== |
12(12(3333)()(2424)sin110°)sin110° |
Substitute |
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== |
12(792)sin110°12(792)sin110° |
Evaluate sinsin 110110 on your calculator |
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== |
396×0.9396926396×0.9396926 |
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372.118372.118 |
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== |
372.1 cm2372.1 cm2 |
Rounded off to one decimal place |
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Question 3 of 4
Find the area of the non-right angled triangle below.
Round your answer to one decimal place
Incorrect
Loaded: 0%
Progress: 0%
0:00
First, label the triangle.
Next, rewrite the Area formula based on the given values of the triangle.
The formula needs two sides and one angle in between them (included angle).
Finally, substitute the values to the revised formula and solve for the area.
b=18b=18mm
c=14c=14mm
A=73°A=73°
A△A△ |
== |
1212bbccsinsinAA |
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== |
12(12(1818)()(1414)sin)sin73°73° |
Substitute the values |
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== |
12(252)sin73°12(252)sin73° |
Evaluate sinsin 7373 on your calculator |
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== |
126×0.956305126×0.956305 |
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120.494120.494 |
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== |
120.5 mm2120.5 mm2 |
Rounded off to one decimal place |
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Question 4 of 4
Find the area of the non-right angled triangle below.
Round your answer to 11 decimal place
Incorrect
Loaded: 0%
Progress: 0%
0:00
First, label the triangle.
Next, rewrite the Area formula based on the given values of the triangle.
The formula needs two sides and one angle in between them (included angle).
Finally, substitute the values to the revised formula and solve for the area.
a=18a=18cm
c=27c=27cm
B=39°B=39°
A△A△ |
== |
1212aaccsinsinBB |
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== |
12(12(1818)()(2727)sin)sin39°39° |
Substitute the values |
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== |
12(486)sin39°12(486)sin39° |
Evaluate sinsin 3939 on your calculator |
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== |
243×0.62932243×0.62932 |
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== |
152.925152.925 |
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152.9 cm2152.9 cm2 |
Rounded off to one decimal place |