2 years ago

GIVING BRAINLIEST!! FAST-

Mathematics

2 answers:

Viefleur [7K]2 years ago

7 0

Answer:

c'estla A

Step-by-step explanation:

d1i1m1o1n [39]2 years ago

3 0

Answer:

i think so

Step-by-step explanation:

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4 bags of cement do 18m^2, how many m^2 can be done with 7 bags

Lorico [155]

36m^2 is the your answer hope it help

8 0

3 years ago

Find what the question asks. 200 points. Will mark brainleist

kotegsom [21]

Note:
The area of a circle with radius r is πr².
An entire circle has a central angle of 360°.

For the sector with radius = (3+4) = 7cm and a central angle of 120°, the area is
$A_{1}= \frac{120}{360}*(49 \pi ) = \frac{49}{3} \pi \, cm^{2}$

For the sector with radius = 3 cm and a central angle of 120°. the area is
$A_{2}= \frac{120}{360} *(9 \pi ) = 3 \pi \, cm^{2}$

The area of the shaded sector (see the figure) is
$A=A_{1}-A_{2} = ( \frac{49}{3} -3) \pi = \frac{40}{3} \pi \, cm^{2}$

Answer: $\frac{40}{3} \pi \, cm^{2}$