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3 years ago

10

HELP ME I DONT KNOW HOW TO FIND THE PERIMETER

1 answer:

Phantasy [73]3 years ago

5 0

Answer:

33.08 m

Step-by-step explanation:

angle of ∆ = 131.6 - 90 = 41.6

=> x² = 8²+3²-2(8)(3)cos 41.6°

= 64+9-48(0.75)

= 73 - 36

= 37

x = √37 = 6.08 m

perimeter = (3×8)+3+6.08 = 33.08 m

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