Question

What is the perimeter of the triangle in Figure B?
3.6 cm

5 cm

6 cm

8.6 cm

Answer 1

@neba.zi

Answer 2

@neba.zi

Answer 3

perimeter(p) = (a + b + c)
if we know the tow sides of a right triangle then we can find the third side of the triangle by the Pythagoras theorem that is
a^2 + b^2 = c^2

Answer 4

ok I now I want to now substitute it with the numbers

Answer 5

2^2 + 3^2 = c^2

Answer 6

13 = c^2

Answer 7

so no find the square root of 13 to get the value of c

Answer 8

c = 3.6

Answer 9

now find the perimeter a + b + c = ?

Answer 10

8.6

Answer 11

so answer is D. 8.6
Nice work ! : )