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areynaguzman100
03.02.2020 •
Mathematics
If the length and breadth of a rectangle are 10cm and 20cm respectively,find the length of its diagonal
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Ответ:
L = 10
B = 20
so to find the diagonal you have to use Pythagorean theorem that is a^2 + b^2 = c^2
10^2 + 20^2 = X^2
X = root of 10^2 + 20^2
X = root of 100 + 400
X = root of 500
X = appox 22.36
Ответ:
22.4 cm
Step-by-step explanation:
First draw the rectangle and divide it into two triangles.
Take one triangle out and with the length and breath solve for the hypotenuse using Pythagoras theorem
.: H^2 = 10^2 + 20^2
H^2 = 500
Find the square root of both sides of the equation
H = 22.4 cm = the length of the diagonal
Ответ:
total he loss weight 5+2.5+2.5=10 lbs 198-10=188 lbs ten he gain 3.5 lbs so add this 188+3.5=191.5lbs