At Westonci.ca, we provide reliable answers to your questions from a community of experts. Start exploring today! Join our Q&A platform to connect with experts dedicated to providing precise answers to your questions in different areas. Get precise and detailed answers to your questions from a knowledgeable community of experts on our Q&A platform.

Pls someone help me or i’ll faint

Pls Someone Help Me Or Ill Faint class=

Sagot :

Answer:
a) DF = 20

b) DF =
Radical Form = sqrt(53)
Decimal Form = 7.28

Answer:

see explanation

Step-by-step explanation:

Using Pythagoras' identity in the right triangles.

The square on the hypotenuse is equal to the sum of the squares on the other 2 sides, that is

DF² = DE² + EF² , then

(a)

DF² = 16² + 12² = 256 + 144 = 400 ( take square root of both sides )

DF = [tex]\sqrt{400}[/tex] = 20

(b)

DF² = 7² + 2² = 49 + 4 = 53 ( take square root of both sides )

DF = [tex]\sqrt{53}[/tex] ≈ 7.28 ( to 2 dec. places )