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
Hope it helps
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The answer is 175 square inches because you have to multiply 5in•7in to get 35inches per picture and since there are five you have to multiply by 35•5=175
Answer: 3.25
Step-by-step explanation:
4x1=4 and 4x3+1=13 so then 13 divided by 4= 3.35
Answer:
213.75
Step-by-step explanation:
95×9=855
855÷4=213.75
ANSWER
EXPLANATION
To find the number of balloons that are purple, we have to find six-sevenths of 35.
That is:
That is the number of balloons that are purple.