X is 7 more than y
x>y then
difference betwen squares is 161 so
x=7+y
and
x²-y²=161
so
x=7+y
sub that for x in other equation
(7+y)²-y²=161
y²+14y+49-y²=161
14y+49=161
minus 49 both sides
14y=112
divide both sides by 14
y=8
sub back
x=7+y
x=7+8
x=15
the numbers are 15 and 8
Answer:
8 cm
Step-by-step explanation:
the 3 cm line from the chord to the center of a circle is a leg of a right triangle which perpendicularly bisects the chord into two equal halves
draw the hypotenuse of the right triangle from the center of the circle to the endpoint of the chord. This is a radius measuring 5 cm.
find the missing leg of the right triangle
a^2= c^2- b^2
a^2= 25-9
a^2=16
a=4
this is only the measurement of half the chord. To find the full length of the chord multiply by two
4*2=8 cm
You use the cricle fourmla (πr sqaure). and you will get 7.065
Answer:
The length of cloth Geeka got is 2.32m
Step-by-step explanation:
The length Geetika got can be calculated by deducting the total length the tailor cuts from the initial length of the cloth.
Initial length of cloth = 15.40m
From the question, the tailor cuts 11m and 5cm for dress and 2m 3 cm for a shirt.
Therefore, the total length the tailor cut = 11m 5cm + 2m 3cm = 13m 8cm
NOTE: 13m 8cm = 13.08m
The length Geeka got = 15.40m - 13.08m = 2.32m
Hence, the length of cloth Geeka got is 2.32m
Answer:
circumference
Step-by-step explanation:
