<h2>20cm</h2><h2>-------------------------------</h2>
<u>Step-by-step explanation:</u>
sides are 4cm, 8cm, 8cm ----( because isosceles triangle have 2 sides equal )
so, perimeter = sum of all sides
= 4 + 8 + 8
<h3> = 20cm</h3><h2>-------------------------------------</h2><h2>FOLLOW ME</h2>
Answer:
8/10 is .8
Step-by-step explanation:
You divide 8 by 10.
Using the quotient rule
f'(x) = x * 1/x - ln x 1 - ln x
----------------- = --------- <-------- ur answer
x^2 x^2
The length of the unknown sides of the triangles are as follows:
CD = 10√2
AC = 10√2
BC = 10
AB = 10
<h3>Triangle ACD</h3>
ΔACD is a right angle triangle. Therefore, Pythagoras theorem can be used to find the sides of the triangle.
where
c = hypotenuse side = AD = 20
a and b are the other 2 legs
lets use trigonometric ratio to find CD,
cos 45 = adjacent / hypotenuse
cos 45 = CD / 20
CD = 1 / √2 × 20
CD = 20 / √2 = 20√2 / 2 = 10√2
20² - (10√2)² = AC²
400 - 100(2) = AC²
AC² = 200
AC = √200 = 10√2
<h3>
Triangle ABC</h3>
ΔABC is a right angle triangle too. Therefore,
Using trigonometric ratio,
cos 45 = BC / 10√2
BC = 10√2 × cos 45
BC = 10√2 × 1 / √2
BC = 10√2 / √2 = 10
(10√2)² - 10² = AB²
200 - 100 = AB²
AB² = 100
AB = 10
learn more on triangles here: brainly.com/question/24304623?referrer=searchResults
Answer:
The Answer is: 75.
Step-by-step explanation:
Set up the equation:
45 / 600 = y / 1000
600y = 45 * 1000
600y = 45000
y = 45,000 / 600 = 75.
