Answer:
Step-by-step explanation:
A circle is inscribed in an equilateral triangle PQR with centre O. If angle OQR = 30°, what is the perimeter of the triangle?
This is a circle inscribed in an equilateral triangle with side s.
If you are asking for the perimeter of PQR, it is 3s.
If you are asking for the perimeter of OQR, it is (3+23–√3)s
Since OR and SR are the hypotenuses of right triangles with adjacent side equal to ½ s, their length is ½s / cos 30° = (√3) /3.
(3/3)s + ((√3) /3)s + ((√3) /3)s = ((3 + 2√3)/3)s ≈ 2.1547s
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There are 3 boxes, each box has 93 tangerines.
There are 279 tangerines. They will be divided equally among 9 classrooms.
Each classroom will get 31 tangerines.
Answer:
According to the 180°-rotation rule, you take the OPPOSITE of both the x-coordinate and y-coordinate:
180°: [<em>x</em>, <em>y</em>] → [<em>-x</em>, <em>-y</em>]
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Step-by-step explanation:
first do the triangle : 11 times 6 divided by 2 equals
33
the formula for a triangle is base times height divided by 2
now multiply 33 x 2 = 66because there is another triangle at the back.
now do 6 x 8 to find the sides that equal to 48
do 48 x 2 because there are 2 sides
now do the base : 11x8 = 88
for final step add all the answers together
66 + 48 + 88 answer is =
202
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The answer is 81, i hope this helped
