Guys please help me! Mam has given this question and I don’t know how to do… please help me at the earliest… please I beg u!
Answers
Answer:
1) area=2 perimeter=6
Step-by-step explanation:
l×b
2×1
2
3+2+1=6
Step-by-step explanation:
I am not sure about the answer
but I try it
fig a) formula circumference of quadrant= πr/2
area = πr²/4
perimeter = adding circumference of three
quadrants
= Q1+Q2+Q3
= π/2((1)) + π/2((2))+π/2(3)
= π/2 (1+2+3).
= 6π/2 = 3πunit
area = π(1²)/4+π(2²)/4+π(3²)/4
= π/4 (1+4+9)
= 14π/4
= 7π/2sq.unit
fig 2 here. A=B=C=D
Perimeter = Semicircle + 2 quadrants
= πr +2×{ πr/2}
= π (A) + π(A)
= 2πAunit
area = πr²/2 + 2(πr²/4)
= πr²/2 +πr²/2
= πr²
= πA²sq.unit
fig c)
here K=L=M=N=4
perimeter = 5(πr/2)
= 5×4π/2 = 10π unit
area = 5(πr²)/4 =5×4²π /4
= 20π sq.units