A 5-month membership to the gym costs $125 jim would like to be a member for 8 months. What is the total amount he Will pay for
1 answer:
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Proof:-
In ∆XYZ and ∆VWZ
Hence
∆XYZ∆VWZ(Side-Angle-Side)
Given: ABCD ∥gram,
BK ⊥ AD , AB ⊥ BD
AB=6, AK=3
Find: m∠A, BK
To proof
as given BK ⊥ AD
thus ΔABK is a right triangle.
thus by using the pythagoras theorem
we have
AB² = BK² + AK²
BK² = AB ²- AK²
= 6² - 3²
= 36 - 9
= 27
Hence
BK = <u> unit</u>
Now find the value m∠A
by using the trignometric function
FORMULA
cosA =
cosA =
=
m∠A = 60°
hence proved
