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2in+3in+4in+4in+6in+7in calculate the area and perimeter of each shape

User JayneT
by
7.8k points

2 Answers

4 votes

Answer:

Let "a", "b" and "с" be sides of the triangle ("с" is the longest side).

The triangle will be:

right if a² + b² = c²

аcute if a² + b² > c²

obtuse if a² + b² < c²

a.

a=3, b=4 and c=5

a² + b² = 3² + 4² = 9 + 16 = 25 and c² = 5² = 25

25 = 25 ⇒ right triangle.

b.

a=5, b=6 and c=7

a² + b² = 5² + 6² = 25 + 36 = 61 and c² = 7² = 49

61 > 49 ⇒ аcute triangle.

c.

a=8, b=9 and c=12

a² + b² = 8² + 9² = 64 + 81 = 145 and c² = 12² = 144

145 > 144 ⇒ аcute triangle.

User Dhaval Jardosh
by
9.0k points
6 votes
Perimeter=26in

Area would be to multiply the units together
User AshuKingSharma
by
8.5k points
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