Cameron M.
asked • 05/04/18What is the area of triangle JKL? when l=20 and k=34 and j=30
what do i do please tell me
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2 Answers By Expert Tutors
Mark M. answered • 05/04/18
Tutor
5.0
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Mathematics Teacher - NCLB Highly Qualified
Use Herron's formula - should be in your text book or google it.
Arthur D. answered • 05/04/18
Tutor
4.9
(293)
Mathematics Tutor With a Master's Degree In Mathematics
Heron's formula:√([s][s-j][s-k][s-l])
s=(20+34+30)/2
s=84/2
s=42
A=√([42][42-20][42-34][42-30])
A=√(42*22*8*12)
A=√88704
A=297.8322 sq units
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Sherry S.
05/04/18