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VashaNatasha [74]
2 years ago
12

CAN SOMEONE HELP ME PLEASE!!! I WILL GIVE THE BRAINIEST AND 100 POINTS!!!

Mathematics
2 answers:
LiRa [457]2 years ago
7 0

Step-by-step explanation:

the length of hypotenuse =

√(21²+28²) = √(441+784)

= √1225

= 35 yd

the perimeter of triangle =

21+28+35 = 84 yd

the area of triangle =

½×21×28 = 294 yd²

iren2701 [21]2 years ago
6 0

Answer: 35 yd

Step-by-step explanation:

28^2+21^2=1225

√1225

=35

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<h3>What is Potential Energy?</h3>

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