701331
701331 701331
  • 03-02-2020
  • Mathematics
contestada

5. Can someone explain how to solve this?

5 Can someone explain how to solve this class=

Respuesta :

jay40891
jay40891 jay40891
  • 03-02-2020

Answer:

AC = 5 cm

BD = 12.5 cm (3 sf) [or 2 × root 39]

BE = 6.93 cm (3 sf) [or 4 × root 3]

Step-by-step explanation:

CE = 8cm [CE is radius of circle]

AC + 3 = 8

AC = 5 cm

BC = 8cm [BC is a radius of circle]

(AC)^2 + (AB)^2 = (BC)^2 [Pythagoras theorem]

25 + (AB)^2 = 64

AB = 6.2450 cm (5 sf) [or root 39]

BD = 2(BA)

= 2(6.2450)

BD = 12.5 cm (3 sf) [or 2 × root 39]

(BA)^2 + (AE)^2 = (BE)^2 [Pythagoras theorem]

39 + 9 = (BE)^2

BE = 6.93 cm (3 sf) [or 4 × root 3]

Answer Link

Otras preguntas

How do the energy and the most probable location of an electron in the third shell of an atom compare to the energy and the most probable location of an electro
Dan bought five new baseball trading cards to add to his collection .The next day his dog ate half of his collection .There are now only twenty nine cards left
The solubility of KClO3(s) in water increases as the (1) temperature of the solution increases (2) temperature of the solution decreases (3) pressure on the sol
simplify Tangent^2(theta)/Sec(theta)+1
I need help factoring this trinomeal: 2x squared + 3x + 1
Science Experiments: What does Interpretation of Data mean?
solve for n -53+n=-28
Which electron configuration represents the electrons in an atom of chlorine in an excited state? (1) 2-7-7 (3) 2-8-7 (2) 2-7-8 (4) 2-8-8
Leader of Britain during WW II
the total of 42,75,189,301 and 728