datstepparoddoe27
13.06.2021 •
Mathematics
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Ответ:
Step-by-step explanation:
1 to find AB
in triangle ADB
here 4 and 2 are the legs of the right triangle so let them be a and b respectively.
AB is the hypotenuse (longest side ) and let it be x
using pythagoras theorem
a^2 + b^2 = c^2
4^2 + = AB^2
16 + 4*6 = AB^2
16 + 24 = AB^2
40 = AB^2
= AB
= AB
therefore AB =v .Hence proved .
In triangle ADC
here 6 and are the legs of the right angle so let them be a and b respectively. AC is the hypotenuse (longest side) so let it be c
usinfg pythagoras theorem
a^2 + b^2 = c^2
6^2 + = AC^2
36 + 4*6 = AC^2
36 + 24 = AC^2
60 = AC^2
= AC
= AC
To prove triangle ABC is a right angled triangle
AD and BD are the legs and AB is hypotenuse
according to pythagoras theorem to be the right angle triangle the sum of square of two smaller sides of a triangle must equal to the square of hypotenuse(longest side)
let two smaller sides be a and b respectively and c be hypotenuse
using pythagoras theorem
a^2 + b^2 = c^2
4^2 + =
16 +2^2*6 = 2^2*10
16 + 4*6 = 4*10
16 + 24 = 40
40 = 40
since both sides are equal it is proved that the triangle ABC is a right angled triangle.
Hope this helps u !!
Ответ:
A) to solve for r, divide both sides by t.
R = d/t
B) divide total feet swam by time:
665,280 feet / 3 hours = 221,760 feet per hour
C) 1 mile = 5,280 feet. Divide feet per hour by 5280:
221,760/5280 = 42 miles per hour
D) long distances are usually calculated in miles because it’s smaller numbers which are easier to use in calculations.