Question

Help me match these formulas pleasee:(

ill put the pics..

1. triangle
2. circle sector
3. circle segment
4. rectangle
5. circle circumference
6. circle area
7. regular polygon
8. equilateral triangle

Answer 1

A= 1/4 s2 sqrt3 -- equilateral triangle

A= bh -- rectangle

A= Pi r2 -- circle area

A= 1/2 h (b1 + b2) -- trapezoid

C= Pi d -- circle circumference

A= base x altitude -- parallelogram

A= 1/2 ap -- regular polygon

A= 1/2 bh -- triangle

Answer 2

1.
`A= (ah_a)/(2),P=a+b+c`
2.
`A= (r^2\pi\alpha)/(360^o)`
3.
`l= (r\pi\alpha)/(180^o)`
4.
`A=ab,P=2(a+b)`
5.
`C=2r\pi`
6.
`A=r^2\pi`
7.
`P=na,S_n=(n-2)180^o,\alpha= (S_n)/(n)`
8.
`P=3a,A= (a^2√(3))/(4)`