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nasty-shy [4]
3 years ago
11

Anyone know this I need help

Mathematics
2 answers:
horrorfan [7]3 years ago
7 0

Answer:

option D

Step-by-step explanation:

we have a right triangle

we know

c^2=a^2+b^2

c=hypotenuse

c=52 cm

a=48 cm

b= 20 cm

we  substitute in the equation c^2=a^a+b^2

so we have

52^2=48^2+20^2

52= sqrt(48^2+20^2)

52= sqrt(2304+400)

52= sqrt(2704)

52cm=52cm

so c=52 cm

so the option D is the correct answer

tensa zangetsu [6.8K]3 years ago
5 0

Answer:

D

Step-by-step explanation:

Since the triangles are similar then the ratios of corresponding sides are equal, that is

AC / DF = CB / FE, that is

13 / DF = 5 / 20 ( cross- multiply )

5DF = 260 ( divide both sides by 5 )

DF = 52

AND

AB / DE = CB / FE, that is

12 / DE = 5 / 20 ( cross- multiply )

5DE = 240 ( divide both sides by 5 )

DE = 48

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