O is centre of a circle and AB is diameter . ABCD is a cyclic quadrilateral angle DAC = 40° then measure of angle BCD is give answer along with picture
Answers
Answer:
Required side of square garden is 25cm
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\large{\underline{\underline{\sf{EXPLANATION:}}}}
EXPLANATION:
Here in this question, concept of perimeter of square is used. We have given the length of fencing of square garden. We know that fencing is always done at the boundary of garden. So it means 100m is the length of perimeter. We have to find side of square, which we can easily find by applying formula for perimeter of square.
So let's start!
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\large{\underline{\underline{\sf{GIVEN:}}}}
GIVEN:
Perimeter of square garden=100cm
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\large{\underline{\underline{\sf{TO\;FIND:}}}}
TOFIND:
Side of square garden
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\large{\underline{\underline{\sf{FORMULA\; APPLIED:}}}}
FORMULAAPPLIED:
★Perimeter of square=4×Side
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\large{\underline{\underline{\sf{SOLUTION:}}}}
SOLUTION:
Perimeter of square garden=100m [Given]
4×Side=100m
Divide by 4 from both LHS and RHS.
Side=25cm.
So the required side of square garden is 25cm.
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\large{\underline{\underline{\sf{ADDITIONAL\; INFORMATION:}}}}
ADDITIONALINFORMATION:
Important formulae:-
★ Area of square=Side²
★ Perimeter of rectangle=2(length+breadth)
★ Area of rectangle=Length×breadth
★ Area of triangle=½×Base×Height
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