1)s=1/2ab sina
a=7.6
b=2.4
sin a =1.5/7.6
s=7.6x2.4x1.5/7.6=3.6
s=3.6 cm
2)s=(axb/2
a=1.2
b=4.5
s=(1.2x4.5)/2=2.7
3)b=2s/a
b=24/4=6
b=6
Copyright © 2024 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
1)s=1/2ab sina
a=7.6
b=2.4
sin a =1.5/7.6
s=7.6x2.4x1.5/7.6=3.6
s=3.6 cm
2)s=(axb/2
a=1.2
b=4.5
s=(1.2x4.5)/2=2.7
3)b=2s/a
b=24/4=6
b=6