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Lesechka [4]
3 years ago
13

Find the area of the triangle (but identify which formula to use). Please help!

Mathematics
1 answer:
GalinKa [24]3 years ago
7 0
A.) A= (1/2)absinC
b.) sinA/a, sinB/b, sinC/c
sin100/42, sin25/b, sinC/c
use these two fractions.
sin100/42= sin25/b
cross multiply next
b×sin100= 42×sin25
then divide on both sides by sin100
b=18
c.)measurementofA+measurementofB+measurementofC=180
100+25+C=180
125+C=180
-125 -125
The measurement of angle C is 55 degrees.
d.)A=(1/2)42×18×sin55
= 21×18×sin55
A =309.6 units squared

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umka2103 [35]

Answer:

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45 for both

hope that answers your question

Step-by-step explanation:

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3 years ago
Consider the graph.
Arlecino [84]

Answer:

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Step-by-step explanation:

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4 years ago
Read 2 more answers
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Answer:

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Step-by-step explanation:

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Answer:

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