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icang [17]
3 years ago
9

The area of a circle is 706.5 what is the radius?

Mathematics
2 answers:
Andrews [41]3 years ago
7 0

Answer:

r = 15 units

Step-by-step explanation:

hello :

The area of a circle is : A= πr²   r is the radius

πr² = 706.5

r² = 706.5/3.14 = 225

r² = 15²

so  :   r = 15 units

d1i1m1o1n [39]3 years ago
3 0

Answer:

15units

Step-by-step explanation:

Area=pi×r², where r is the radius.

706.5=3.14×r²

r²=225

r=15units

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-------------------------------------------------------------------------

Extra notes:

* A kite is a quadrilateral that has two pairs of adjacent congruent sides. In this case, WX and XY is one pair of congruent sides that are adjacent (ie next to each other). So that's why WX = XY. Similarly, WZ = YZ is the second pair of adjacent congruent sides.

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* Due to this reflection, angle W reflects over line XZ to get angle Y. Proving that angle W = angle Y

* SSS means "side side side", basically saying "you use three pairs of congruent sides to prove two triangles congruent".

* The acronym CPCTC stands for "corresponding parts of congruent triangles are congruent"

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